Figuring Out Feed Ramps | Feed Ramp Tips | The Shooter's Log Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. Clear editor. Copyright 1996-2023 AR15.COM LLC. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. Was sort of worried about how it would run with an 11.5" barrel and mismatched ramps, but it sounds like it should be good to go either way. Surplus Colt 14.5 M4 SOCOM Carbine Barrel 1/7 Twist You can always buy a non-m4 extension and have the new barrel retimed and headspaced, but it will probably cost more than a new upper receiver. Site towers are not "F" marked SPECS: Length- 14.5". When I function tested it the first time with live half-jacketed rounds I had the worst FTF jam I have ever experienced. You can modify the upper, but bear in mind that the un-anodized aluminum surface will be very soft and prone to wear if your particular bullet hits it frequently. Required fields are marked *. Any use of this content without express written consent is prohibited. Feeds flawlessly. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. I didnt think anything about it having M4 feed ramps. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. if you are OK with 3MOA, you might go 20,000 rounds! Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. It's an interesting question. If I was concerned with precision, I would seek out parts from well-known gun makers and customizers Baer comes to mind, Hart barrels, etc etc. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. Press question mark to learn the rest of the keyboard shortcuts. Went back to the sellers website and found I was not the only one with problems. They are better! Feed ramps on barrel extensions are a good example. Get The Best Trigger Pull Gauges To Make Every Shot Count. The extension is the part at the end of the barrel that fits inside the upper. LanceRiley, M16's fed pretty well before the M4 feed ramps were introduced. All uppers are assembled cleaned and tested before shipping. P2A PATRIOT 22" 223 Wylde 1/7 Rifle Length Melonite Fluted Heavy Bull Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? I've seen that pic, it is a good reference. One new winner* is announced every week! The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! 3. There's no downside to having M4 feedramps on your carbine, but they are not as necessary without full auto and when using followers that will not tilt (or in a 20 AR15). Add 3% to the total cost for credit card purchases. Brevity matters. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? M4 barrel to non M4 receiver is fine, but not the other way around. Feed ramp - Wikipedia M4 Feed ramps on barrel extensions are a solid example. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. JavaScript is disabled. Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. Our 6.5 Grendel Black Nitride rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price. 4. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. I'll probably build a pistol out of this one. Is one better than the other? My factory JP CTR-02 has the appearance of the bottom right picture in the post above, M4 barrel extension in a rifle receiver, and there is not a mark on the aluminum under the barrel extension. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About AR Tech Tip - Checking M4 Ramps for overhang School of the American Rifle 84.8K subscribers Subscribe 2.9K 90K views 2 years ago AR Tech Tip - Checking M4 Ramps for overhang Show more Show more. Avoid Polishing Too Lightly Or Too Roughly Previous. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Cerakoted Magpul Flat Dark Earth (FDE) Color with Forward Assist and Ejection Port Cover Installed BARREL: 22 inch, 223 Wylde Caliber, 4150 CMV, 1:7 Twist, Heavy Bull Barrel Profile, Straight Fluted, Melonite/Nitride Finish - made for us by Tactical Kinetics HAND All we do is dremmel it to match - we dont remove it and grind to any specific angle. Feels like a silly question now that it makes sense. I just need a little guidance on this and I'm having trouble getting good results from Google. You can put a M4 barrel and non-M4 receiver together, but you can't mismatch them the other way. Only took a few minutes. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. All Rights Reserved. Lol. If you have a m4 ramped upper but not barrel you can cause problems as there's a lip of steel barrel extension in the way that can cause feeding problems. Forged 7075-T6 aluminum is harder than a bulls balls. 3. Rifles, Uppers, Lowers, Barrels, and more, [ARCHIVED THREAD] - Rifle vs m4 feed ramps, http://i135.photobucket.com/albums/q125/PursuitSS/Postings%20photos/c0d26170b75c3e6f9ea65a7d0862247e.jpg. Do you need an M4 feed ramp on your AR? Here is some info. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Somwhere in the 1990s I believe, Colt designed the M4 feed ramps, where they took some of the material out of the upper receiver, cut two little ramps in it and then cut the ramps in the barrel extention a little further forward. Check often for fit. So, I had purchased a 458 upper. If you want precision, dont look to the mil-spec gun, look to the one that is popular in 3-gun competitions, at Thunder Ranch, etc. Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. How to Clone the M16A2 Rifle - The New Rifleman This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The barrel blanks available are made from 416 Stainless Steel. The leading cause that leads to the development of the M4 feed ramp is the gas pressure from the carbine gas system that is increasing along with a high cyclic rate. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. You have a rifle barrel. On the other hand, I wouldn't consider them as a deal breaker, and they would not pass up a good deal with an upper only because it did not have them - the M4 feed ramps. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. Its fine to use an M4 Barrel with a non-N4 (rifle) upper but if you have the barrel already is much simpler to just buy a M-4 upper and just replace the upper the barrel is harder to build..I have even cut ramps on a rifle upper and it really wasent needed That is before I knew better.Then I guncoted the ramps before I found out about Aluminum Black treatment. *Must have a registered ARFCOM account to win. M4 feed ramps are not an original design, they were designed for the M4 In fact, the . If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. My experience with ARs is all A-1s. M4 feed ramps were created during the development of the xM4 carbine for the original Army requirement of a carbine rifle that used the then current M16A2 upper receiver, 14.5" Barrel and had featured a collapsible sliding stock. I have a non ramped barrel in a ramped upper, feeds fine. FFL Fax: 866-721-8691. I have looked and looked and looked. Only took a few minutes. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. Share it in the comments section. -The Barrel MUST be removed from the Upper Receiver in order to use this Kit.-Never cut or polish the aluminum M4 Feed Ramps in your upper receiver! Editors Note: This article was originally published in January of 2019. Press question mark to learn the rest of the keyboard shortcuts. Modern Series Barrels. Would not feed to save its life! I like all my guns to be reliable. The barrel extension and the receiver both have to have the cuts. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. The manufacturer said they had sold hundreds of barrels with out problems reported. So I'm working on my first build, and I'm a little confused. How long your barrel "lasts" depends on what your accuracy threshold is before you decide it is too bad to keep using. So, lets glide down these lines below to erase your misconceptions about them. Modify AR15 A2 barrel extension for M4 feed ramp? AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Your link has been automatically embedded. So, what youre saying is that an M16 upper (not M4 cut) will work with either barrel, but an M4 cut upper will only work with an M4 cut barrel. By - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! It's going to a gunsmith to be shortened and rethreaded anyways, can they just grind/polish the feed ramps to match or is it more involved than that? Konza Defender M-LOK 5.56 16" Rifle 1x7 FEATURES: 16" 4150 Nitride 1x7 5.56 Barrel T-Marked Upper with M4 Feed Ramps Steel Micro Gas Block, and Carbine Length Gas Tube 15" 7075 T6 Aluminum Free Float M-LOK Hand Guard A2 Muzzle Break BCG is an M16 Style Nitride QPQ Finish Charging Handle Mil-Spec 6 Position Mil-Spec Diameter Stock For those who have actually done it will a new barrel with the M4 feed ramp extension function properly with an old school rifle-type upper receiver? Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd On AR9's, I understand the distance between the Mag Follower and the Feed Ramp is a known complication in the design. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. I will check with compass lake. I'm a machinist in the aerospace industry and lucky enough to have unrestricted access to a really nice machine shop so the modification from rifle to M4 feed ramps is no sweat, I've done it once before a few years back with a .250" carbide cutter in the mill for a friend and it came out looking indistinguishable from a true M4 extension. Its also recommended you polish the ramps once youve achieved the appropriate angle. If it's happening regularly, check the magazines you are using for serviceability. I don't have much to add re: feed ramps, but. Anodized red parts. The parts are interchangeable. A feed ramp is a basic feature of many breech loading cartridge firearm designs. I'm assuming that you only need the ramps from one or the other. what does it do?? However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. Good call. Thank you for answering the question do well. Earlfillmore 13 hr. If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. Some argue that, factually, its a step to enable a smoother feeding. SKU: BCM-URG-M4-16 Features: M4 Feed Ramp Barrel Extension Caliber: 5.56 NATO Barrel Length: 16in Barrel Style: Standard Handguard: None BCM M4 Handguards (Double Heat Shield) - Black + $15.00 PKMR (Polymer KeyMod Rail) Carbine Length - Black + $24.95 PKMR (Polymer KeyMod Rail) Carbine Length - Flat Dark Earth + $24.95 Stock Status: Out of stock Display as a link instead, Gun smith said , not head spaced properly. Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals 308 m5 using m4 feed ramps, which I belive are for the smaller round like. CARBON-15 Stripped Lower Receiver so im thinking I might as well just get the unramp upper. well.. it's kinda hard to get stuff in this part of the world. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. There are several, but Steve and the guys at ADCO in OH are one such option (they use the Dremel method, but they do it right as I have seen several first-hand examples of their work and its performance after the fact). They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. By my estimates, the tip of the bullet first hits the barrel extension about 1/3 of the way up the respective feed ramp on the barrel extension. However, if youre wanting to rebarrel a non-M4-cut upper with an M4 feed-ramp equipped barrel, or going the other direction: you have a new upper thats been relieved to fit with the M4 ramps, and a non-M4-cut barrel extension, and that wont work! AR-15 feed ramp issues - Rifle - Technical - Brian Enos's Forums Notify me of follow-up comments by email. Powered by Invision Community. I found the article very informative. 5. Either way is good and both types work great with semi auto only guns. Add M4 cuts to Barrel Ext $15.00 We can modify your rifle extension to match the M4 cuts in an upper receiver. Either way is good and both types work great with semi auto only guns. - The Shooter's Log, 2012 SHOT Show Special Report: Daniel Defense DDM4 V5 in .300 Blackout and a Factory SBR - The Shooter's Log, 2012 SHOT Show Special Report: SOG Armory Predator Rifle - The Shooter's Log, Surefire's 100-Round MAG5-100: The Highest Capacity AR-15 Magazine - The Shooter's Log, Throwback Thursday: Taurus Judge Range Report, ATI Milsport SGA 410 All the Advantages of an AR in .410, Ruger SR1911 LW Commander The Lightweight .45 ACP, Rifle Hack: Sighting for 100 Yards at a Distance of 25 Yards, Throwback Thursday: All About Bullet Grain. The barrels also had to be modified. Which Model Colt 1911 is For Me? The magazine lips cannot move, so with these larger diameter cartridges, the bullet tips down lower about the centerline of the bore (half of the diameter increase to be exact). I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. I like getting another Upper idea then you could end up with two rifles! Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? If your magazines are set up correctly, and the feed lip edges polished smooth, each round fed from the magazine will go directly into the chamber. Factory said its fine . That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Description. Feed Ramps -300BlkTalk can you buy feed ramps individually? Do you have an AR barrel or feed ramp tip? Don't forget read more information about it here! M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces AR9 - Help diagnosing feeding issue. Most work performed while-you-wait, evening and saturday appointments available. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. If you aren't 110% comfortable with doing the job, and you do not have all the tools and equipment to do it properly, then have a smith do it for you. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. If a barrel comes with the feed ramps could I take them off? Higher pressure equte to parts (bcg, buffer, buffer spring, ROUNDS, etc) experiencing much higher wear/tear. I've shot a good deal of rounds through 20" A2's and I realize they run but you are describing issues that the M4 feed ramps alleviate, that would probably be good to reduce on A2's as well. Barrel, sight and trigger work on most pistols and shotguns. "It will last 5k rounds instead of 4k. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Also, barrel life is relative. Then the manufacturer discontinued the barrel. You CAN modify a rifle/A2 barrel extension to an M4 style extension, but it isn't always the best way to go unless you just have to do it. AR-15 Barrel Extension Question - Sniper's Hide Forum Not all mil-spec features advertised on the product information are the real mil-specs. All Rights Reserved. Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. "C" stamp and CAGE code available. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. There's a 7 degree difference between standard and M4 ramps. A4 Complete Upper Receiver. I was planning on using a Daniel Defense 14.5 pencil barrel, because like the C8 they are CHF, lightweight profile, and .750 at the FSB (And also because quality carbine pencil barrels with .625 gas blocks seem to be in short supplyor else I'd just build a 723 clone.) . Personally, I would sell the rifle upper and buy an M4 upper - the cost will be small and you will end up with a more satisfactory end product. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. . Watch a video about our Modern Series AR barrel: Pasted as rich text. Read Now. It's best to have M4 ramps on both the upper and barrel. This is why you can use a barrel with an extension with M4 feedramps with a receiver that does not have feedramps, but you cannot use a receiver with M4 feedramps with a barrel with an extension with rifle feedramps. Standard vs M4 Feed Ramps, what's the difference #1056 Paste as plain text instead, Shorter length equates to much higher pressure in the upper receiver. what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. Rifle vs m4 feed ramps - AR15.COM FN AR-15 5.56X45mm Nato 14.70" M4 Profile Barrel Carbine Length Gas Notice how the ramp starts on the barrel extension and not in the receiver. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! 1 is a standard and the other for use with m4 feed ramp barrels. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. With the bcg moving that much faster, the magazine springs were having a hard time supplying the rounds fast enough, AS WELL AS the tips of the rounds were digging into the feed ramps and catching. practical_man The tip of the cartridge rarely comes into contact with the upper receiver. I think your mistaking that with adding ramps to the receiver. If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? CUTTING M4 RAMPS - YouTube The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. Interesting reading. Using an upper with M4 feed ramps with a barrel that does not have them will lead to feed problems as it creates a ledge/lip that can catch the bullet tip as it tries to feed. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. Another reason is that any commercial receiver and parts makers want to tool up to make upper receivers and barrel extensions, especially when shorter guns are becoming more popular. I can assure you that most mods that deviate from the original design aren't 100% reliable. Upload or insert images from URL. Since the M4 barrel is one and a half inches shorter than the minimum legal barrel you can install in an AR15, the M4 gas tube will be, of course, smaller. It's best to use rifle/rifle combo or M4/M4. All NFA rules apply. I suggest you get a rifle receiver. Use this M4 Barrel extention with M4 feedramps. Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. M4 M-4 Feed Ramp Jam with 55 gr grain Bullets, Solution, Fix, AR15 AR-15 Stuck Cartridge iowaunemployment 21K views 10 years ago Comparing AR15 barrels -Faxon vs. Bear Creek arsenal-. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. M4-style barrel extension with Rifle-type upper - Rifle - Technical ago Costs about $40-50 to have the feed ramps reprofiled from what I can gather. I think my question would be why rifle receiver+M4 barrel is just "ok" rather than "good", unless the point is that in a carbine-gas gun M4 ramps are just considered an improvement over no ramps. The mil actually only specs M4 feed ramps for use in its M4s. FWIW one of my rifles has M4 feed ramps on the barrel and no M4 feed ramps on the upper and it has functioned just fine. Most of barrel assemblies and upper receivers on the market now have a present of M4 feed ramps. It's not worth changing the barrel extension on an already finished barrel, getting the new barrel extension to line up correctly with the gas port will probably cost more in gunsmithing/machining fees than buying a new barrel. I use it for hunting dogs only. If I can correct an issue before it's an issue that is preferred. By the time you made it work you spent more time, money, and effort than if you just bought a new barrel or upper. For a better experience, please enable JavaScript in your browser before proceeding. In military situations, it is advantageous for rifles to function with damaged, worn, or less than ideally serviceable magazines. For a better experience, please enable JavaScript in your browser before proceeding. M4 Barrel Extension (M4 Feedramps) $22.95 (4 reviews) SKU: Barrel-Extension-M4 Stock Status: Quantity: Add to Wish List Description For your AR15, M16, M4. Thanks. [WTB] Black A1 carry handle upper NON-m4 feed ramp $200 After two months of back and forth, cleaned up the feed ramps. It was in the last few issues of SAR. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. It is removeable with a special wrench and a barrel clamp/vise. can the barrel extension be bought individualy? hey bro nice to see you here!!! The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. This is one time it's better to go a little too far than to leave an edge for the . 50 bucks one way or the other on the barrel ain't squat! Additionally, in this increasingly specialized world of AR-15 parts that we live in, there are proprietary feed ramp cuts used for some alternate cartridges, such as .458 SOCOM. Its not a big deal but still an important thing to remember and understand. Metal cases ammunition such as Wolf through an M4 clone? Moreover, telling someone that an extension can be modified, while not a lie, is nothing more than mental masturbation when your post contains a caveat for having the knowledge and proper tools. so it is better to have an upper reciever that's designed for non-m4 feed ramps since you can put in standard barrels right? Little polish. You need to match up barrels to receivers for optimum performance. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. *Must have a registered ARFCOM account to win. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). Canon Imageclass Mf743cdw Factory Reset, Advantages And Disadvantages Of Record Keeping, Articles A
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adding m4 feed ramps to barrel

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pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. Just put it in and shoot it. In most cases the ramps only help during full auto mode while cycling at a high rate. Your email address will not be published. Go slow and you'll be done in no time. Remember less is more, little by little. Our 6mm ARC barrel come standard with 1-7.5 Twist, M4 Feed Ramps and gas tube. M4 feed ramps will extend the barrel extension and the upper receiver. which is basicallly an m16a1 cut down. Being a Newbie AR owner ((Ive been an avid gun owner for nearly 50 years), I appreciate the information and visual aids that Im sure will be a big help in enjoying and using this gun platform. Figuring Out Feed Ramps | Feed Ramp Tips | The Shooter's Log Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. Clear editor. Copyright 1996-2023 AR15.COM LLC. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. Was sort of worried about how it would run with an 11.5" barrel and mismatched ramps, but it sounds like it should be good to go either way. Surplus Colt 14.5 M4 SOCOM Carbine Barrel 1/7 Twist You can always buy a non-m4 extension and have the new barrel retimed and headspaced, but it will probably cost more than a new upper receiver. Site towers are not "F" marked SPECS: Length- 14.5". When I function tested it the first time with live half-jacketed rounds I had the worst FTF jam I have ever experienced. You can modify the upper, but bear in mind that the un-anodized aluminum surface will be very soft and prone to wear if your particular bullet hits it frequently. Required fields are marked *. Any use of this content without express written consent is prohibited. Feeds flawlessly. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. I didnt think anything about it having M4 feed ramps. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. if you are OK with 3MOA, you might go 20,000 rounds! Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. It's an interesting question. If I was concerned with precision, I would seek out parts from well-known gun makers and customizers Baer comes to mind, Hart barrels, etc etc. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. Press question mark to learn the rest of the keyboard shortcuts. Went back to the sellers website and found I was not the only one with problems. They are better! Feed ramps on barrel extensions are a good example. Get The Best Trigger Pull Gauges To Make Every Shot Count. The extension is the part at the end of the barrel that fits inside the upper. LanceRiley, M16's fed pretty well before the M4 feed ramps were introduced. All uppers are assembled cleaned and tested before shipping. P2A PATRIOT 22" 223 Wylde 1/7 Rifle Length Melonite Fluted Heavy Bull Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? I've seen that pic, it is a good reference. One new winner* is announced every week! The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! 3. There's no downside to having M4 feedramps on your carbine, but they are not as necessary without full auto and when using followers that will not tilt (or in a 20 AR15). Add 3% to the total cost for credit card purchases. Brevity matters. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? M4 barrel to non M4 receiver is fine, but not the other way around. Feed ramp - Wikipedia M4 Feed ramps on barrel extensions are a solid example. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. JavaScript is disabled. Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. Our 6.5 Grendel Black Nitride rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price. 4. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. I'll probably build a pistol out of this one. Is one better than the other? My factory JP CTR-02 has the appearance of the bottom right picture in the post above, M4 barrel extension in a rifle receiver, and there is not a mark on the aluminum under the barrel extension. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About AR Tech Tip - Checking M4 Ramps for overhang School of the American Rifle 84.8K subscribers Subscribe 2.9K 90K views 2 years ago AR Tech Tip - Checking M4 Ramps for overhang Show more Show more. Avoid Polishing Too Lightly Or Too Roughly Previous. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Cerakoted Magpul Flat Dark Earth (FDE) Color with Forward Assist and Ejection Port Cover Installed BARREL: 22 inch, 223 Wylde Caliber, 4150 CMV, 1:7 Twist, Heavy Bull Barrel Profile, Straight Fluted, Melonite/Nitride Finish - made for us by Tactical Kinetics HAND All we do is dremmel it to match - we dont remove it and grind to any specific angle. Feels like a silly question now that it makes sense. I just need a little guidance on this and I'm having trouble getting good results from Google. You can put a M4 barrel and non-M4 receiver together, but you can't mismatch them the other way. Only took a few minutes. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. All Rights Reserved. Lol. If you have a m4 ramped upper but not barrel you can cause problems as there's a lip of steel barrel extension in the way that can cause feeding problems. Forged 7075-T6 aluminum is harder than a bulls balls. 3. Rifles, Uppers, Lowers, Barrels, and more, [ARCHIVED THREAD] - Rifle vs m4 feed ramps, http://i135.photobucket.com/albums/q125/PursuitSS/Postings%20photos/c0d26170b75c3e6f9ea65a7d0862247e.jpg. Do you need an M4 feed ramp on your AR? Here is some info. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Somwhere in the 1990s I believe, Colt designed the M4 feed ramps, where they took some of the material out of the upper receiver, cut two little ramps in it and then cut the ramps in the barrel extention a little further forward. Check often for fit. So, I had purchased a 458 upper. If you want precision, dont look to the mil-spec gun, look to the one that is popular in 3-gun competitions, at Thunder Ranch, etc. Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. How to Clone the M16A2 Rifle - The New Rifleman This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The barrel blanks available are made from 416 Stainless Steel. The leading cause that leads to the development of the M4 feed ramp is the gas pressure from the carbine gas system that is increasing along with a high cyclic rate. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. You have a rifle barrel. On the other hand, I wouldn't consider them as a deal breaker, and they would not pass up a good deal with an upper only because it did not have them - the M4 feed ramps. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. Its fine to use an M4 Barrel with a non-N4 (rifle) upper but if you have the barrel already is much simpler to just buy a M-4 upper and just replace the upper the barrel is harder to build..I have even cut ramps on a rifle upper and it really wasent needed That is before I knew better.Then I guncoted the ramps before I found out about Aluminum Black treatment. *Must have a registered ARFCOM account to win. M4 feed ramps are not an original design, they were designed for the M4 In fact, the . If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. My experience with ARs is all A-1s. M4 feed ramps were created during the development of the xM4 carbine for the original Army requirement of a carbine rifle that used the then current M16A2 upper receiver, 14.5" Barrel and had featured a collapsible sliding stock. I have a non ramped barrel in a ramped upper, feeds fine. FFL Fax: 866-721-8691. I have looked and looked and looked. Only took a few minutes. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. Share it in the comments section. -The Barrel MUST be removed from the Upper Receiver in order to use this Kit.-Never cut or polish the aluminum M4 Feed Ramps in your upper receiver! Editors Note: This article was originally published in January of 2019. Press question mark to learn the rest of the keyboard shortcuts. Modern Series Barrels. Would not feed to save its life! I like all my guns to be reliable. The barrel extension and the receiver both have to have the cuts. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. The manufacturer said they had sold hundreds of barrels with out problems reported. So I'm working on my first build, and I'm a little confused. How long your barrel "lasts" depends on what your accuracy threshold is before you decide it is too bad to keep using. So, lets glide down these lines below to erase your misconceptions about them. Modify AR15 A2 barrel extension for M4 feed ramp? AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Your link has been automatically embedded. So, what youre saying is that an M16 upper (not M4 cut) will work with either barrel, but an M4 cut upper will only work with an M4 cut barrel. By - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! It's going to a gunsmith to be shortened and rethreaded anyways, can they just grind/polish the feed ramps to match or is it more involved than that? Konza Defender M-LOK 5.56 16" Rifle 1x7 FEATURES: 16" 4150 Nitride 1x7 5.56 Barrel T-Marked Upper with M4 Feed Ramps Steel Micro Gas Block, and Carbine Length Gas Tube 15" 7075 T6 Aluminum Free Float M-LOK Hand Guard A2 Muzzle Break BCG is an M16 Style Nitride QPQ Finish Charging Handle Mil-Spec 6 Position Mil-Spec Diameter Stock For those who have actually done it will a new barrel with the M4 feed ramp extension function properly with an old school rifle-type upper receiver? Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd On AR9's, I understand the distance between the Mag Follower and the Feed Ramp is a known complication in the design. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. I will check with compass lake. I'm a machinist in the aerospace industry and lucky enough to have unrestricted access to a really nice machine shop so the modification from rifle to M4 feed ramps is no sweat, I've done it once before a few years back with a .250" carbide cutter in the mill for a friend and it came out looking indistinguishable from a true M4 extension. Its also recommended you polish the ramps once youve achieved the appropriate angle. If it's happening regularly, check the magazines you are using for serviceability. I don't have much to add re: feed ramps, but. Anodized red parts. The parts are interchangeable. A feed ramp is a basic feature of many breech loading cartridge firearm designs. I'm assuming that you only need the ramps from one or the other. what does it do?? However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. Good call. Thank you for answering the question do well. Earlfillmore 13 hr. If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. Some argue that, factually, its a step to enable a smoother feeding. SKU: BCM-URG-M4-16 Features: M4 Feed Ramp Barrel Extension Caliber: 5.56 NATO Barrel Length: 16in Barrel Style: Standard Handguard: None BCM M4 Handguards (Double Heat Shield) - Black + $15.00 PKMR (Polymer KeyMod Rail) Carbine Length - Black + $24.95 PKMR (Polymer KeyMod Rail) Carbine Length - Flat Dark Earth + $24.95 Stock Status: Out of stock Display as a link instead, Gun smith said , not head spaced properly. Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals 308 m5 using m4 feed ramps, which I belive are for the smaller round like. CARBON-15 Stripped Lower Receiver so im thinking I might as well just get the unramp upper. well.. it's kinda hard to get stuff in this part of the world. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. There are several, but Steve and the guys at ADCO in OH are one such option (they use the Dremel method, but they do it right as I have seen several first-hand examples of their work and its performance after the fact). They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. By my estimates, the tip of the bullet first hits the barrel extension about 1/3 of the way up the respective feed ramp on the barrel extension. However, if youre wanting to rebarrel a non-M4-cut upper with an M4 feed-ramp equipped barrel, or going the other direction: you have a new upper thats been relieved to fit with the M4 ramps, and a non-M4-cut barrel extension, and that wont work! AR-15 feed ramp issues - Rifle - Technical - Brian Enos's Forums Notify me of follow-up comments by email. Powered by Invision Community. I found the article very informative. 5. Either way is good and both types work great with semi auto only guns. Add M4 cuts to Barrel Ext $15.00 We can modify your rifle extension to match the M4 cuts in an upper receiver. Either way is good and both types work great with semi auto only guns. - The Shooter's Log, 2012 SHOT Show Special Report: Daniel Defense DDM4 V5 in .300 Blackout and a Factory SBR - The Shooter's Log, 2012 SHOT Show Special Report: SOG Armory Predator Rifle - The Shooter's Log, Surefire's 100-Round MAG5-100: The Highest Capacity AR-15 Magazine - The Shooter's Log, Throwback Thursday: Taurus Judge Range Report, ATI Milsport SGA 410 All the Advantages of an AR in .410, Ruger SR1911 LW Commander The Lightweight .45 ACP, Rifle Hack: Sighting for 100 Yards at a Distance of 25 Yards, Throwback Thursday: All About Bullet Grain. The barrels also had to be modified. Which Model Colt 1911 is For Me? The magazine lips cannot move, so with these larger diameter cartridges, the bullet tips down lower about the centerline of the bore (half of the diameter increase to be exact). I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. I like getting another Upper idea then you could end up with two rifles! Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? If your magazines are set up correctly, and the feed lip edges polished smooth, each round fed from the magazine will go directly into the chamber. Factory said its fine . That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Description. Feed Ramps -300BlkTalk can you buy feed ramps individually? Do you have an AR barrel or feed ramp tip? Don't forget read more information about it here! M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces AR9 - Help diagnosing feeding issue. Most work performed while-you-wait, evening and saturday appointments available. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. If you aren't 110% comfortable with doing the job, and you do not have all the tools and equipment to do it properly, then have a smith do it for you. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. If a barrel comes with the feed ramps could I take them off? Higher pressure equte to parts (bcg, buffer, buffer spring, ROUNDS, etc) experiencing much higher wear/tear. I've shot a good deal of rounds through 20" A2's and I realize they run but you are describing issues that the M4 feed ramps alleviate, that would probably be good to reduce on A2's as well. Barrel, sight and trigger work on most pistols and shotguns. "It will last 5k rounds instead of 4k. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Also, barrel life is relative. Then the manufacturer discontinued the barrel. You CAN modify a rifle/A2 barrel extension to an M4 style extension, but it isn't always the best way to go unless you just have to do it. AR-15 Barrel Extension Question - Sniper's Hide Forum Not all mil-spec features advertised on the product information are the real mil-specs. All Rights Reserved. Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. "C" stamp and CAGE code available. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. There's a 7 degree difference between standard and M4 ramps. A4 Complete Upper Receiver. I was planning on using a Daniel Defense 14.5 pencil barrel, because like the C8 they are CHF, lightweight profile, and .750 at the FSB (And also because quality carbine pencil barrels with .625 gas blocks seem to be in short supplyor else I'd just build a 723 clone.) . Personally, I would sell the rifle upper and buy an M4 upper - the cost will be small and you will end up with a more satisfactory end product. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. . Watch a video about our Modern Series AR barrel: Pasted as rich text. Read Now. It's best to have M4 ramps on both the upper and barrel. This is why you can use a barrel with an extension with M4 feedramps with a receiver that does not have feedramps, but you cannot use a receiver with M4 feedramps with a barrel with an extension with rifle feedramps. Standard vs M4 Feed Ramps, what's the difference #1056 Paste as plain text instead, Shorter length equates to much higher pressure in the upper receiver. what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. Rifle vs m4 feed ramps - AR15.COM FN AR-15 5.56X45mm Nato 14.70" M4 Profile Barrel Carbine Length Gas Notice how the ramp starts on the barrel extension and not in the receiver. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! 1 is a standard and the other for use with m4 feed ramp barrels. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. With the bcg moving that much faster, the magazine springs were having a hard time supplying the rounds fast enough, AS WELL AS the tips of the rounds were digging into the feed ramps and catching. practical_man The tip of the cartridge rarely comes into contact with the upper receiver. I think your mistaking that with adding ramps to the receiver. If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? CUTTING M4 RAMPS - YouTube The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. Interesting reading. Using an upper with M4 feed ramps with a barrel that does not have them will lead to feed problems as it creates a ledge/lip that can catch the bullet tip as it tries to feed. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. Another reason is that any commercial receiver and parts makers want to tool up to make upper receivers and barrel extensions, especially when shorter guns are becoming more popular. I can assure you that most mods that deviate from the original design aren't 100% reliable. Upload or insert images from URL. Since the M4 barrel is one and a half inches shorter than the minimum legal barrel you can install in an AR15, the M4 gas tube will be, of course, smaller. It's best to use rifle/rifle combo or M4/M4. All NFA rules apply. I suggest you get a rifle receiver. Use this M4 Barrel extention with M4 feedramps. Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. M4 M-4 Feed Ramp Jam with 55 gr grain Bullets, Solution, Fix, AR15 AR-15 Stuck Cartridge iowaunemployment 21K views 10 years ago Comparing AR15 barrels -Faxon vs. Bear Creek arsenal-. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. M4-style barrel extension with Rifle-type upper - Rifle - Technical ago Costs about $40-50 to have the feed ramps reprofiled from what I can gather. I think my question would be why rifle receiver+M4 barrel is just "ok" rather than "good", unless the point is that in a carbine-gas gun M4 ramps are just considered an improvement over no ramps. The mil actually only specs M4 feed ramps for use in its M4s. FWIW one of my rifles has M4 feed ramps on the barrel and no M4 feed ramps on the upper and it has functioned just fine. Most of barrel assemblies and upper receivers on the market now have a present of M4 feed ramps. It's not worth changing the barrel extension on an already finished barrel, getting the new barrel extension to line up correctly with the gas port will probably cost more in gunsmithing/machining fees than buying a new barrel. I use it for hunting dogs only. If I can correct an issue before it's an issue that is preferred. By the time you made it work you spent more time, money, and effort than if you just bought a new barrel or upper. For a better experience, please enable JavaScript in your browser before proceeding. In military situations, it is advantageous for rifles to function with damaged, worn, or less than ideally serviceable magazines. For a better experience, please enable JavaScript in your browser before proceeding. M4 Barrel Extension (M4 Feedramps) $22.95 (4 reviews) SKU: Barrel-Extension-M4 Stock Status: Quantity: Add to Wish List Description For your AR15, M16, M4. Thanks. [WTB] Black A1 carry handle upper NON-m4 feed ramp $200 After two months of back and forth, cleaned up the feed ramps. It was in the last few issues of SAR. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. It is removeable with a special wrench and a barrel clamp/vise. can the barrel extension be bought individualy? hey bro nice to see you here!!! The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. This is one time it's better to go a little too far than to leave an edge for the . 50 bucks one way or the other on the barrel ain't squat! Additionally, in this increasingly specialized world of AR-15 parts that we live in, there are proprietary feed ramp cuts used for some alternate cartridges, such as .458 SOCOM. Its not a big deal but still an important thing to remember and understand. Metal cases ammunition such as Wolf through an M4 clone? Moreover, telling someone that an extension can be modified, while not a lie, is nothing more than mental masturbation when your post contains a caveat for having the knowledge and proper tools. so it is better to have an upper reciever that's designed for non-m4 feed ramps since you can put in standard barrels right? Little polish. You need to match up barrels to receivers for optimum performance. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. *Must have a registered ARFCOM account to win. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII).

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adding m4 feed ramps to barrel