Required fields are marked *. Alternately, an upper receiver WITH M4 feed ramp cuts MUST be used with a barrel cuts as the combination will create a ledge that will cause feeding issues. You also repeated yourself. The trust part is accepting claims of USGI-spec parts actually being done to not only blueprint dimensions, but also made from the correct materials treated to the same processes. [Parts] Brownells C7 Stripped Upper - No M4 feed ramps - Reddit To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. Will my A3 upper reciever work with my M4 barrel extention.According to some or your posts they will.Thanks Bill. The M-16/M4 are great weapons. Does anyone have a follow up that confirms or denies my claim? Well, at least the ones in pristine condition. Precision machined from a premium-grade aluminum forging, 2023 Thunder Tactical Sign up and get exclusive access to promotions, sales events, pre-order sales & more! Plenty of Colt's floating around if you look hard enough. The Ultimate M4 Upper Guide | American Firearms You do not pay anything extra and your purchase helps support our work. Are you all needing pictures of the m4 feed ramps on an A2 upper from Fulton armory? As suggested, its best to match the upper and barrel extension no worries that way. We use the Matomo software for tracking and analysis. The DoubleStar A-2 Upper Receiver is making a comeback! I cant advise on that one folks. One new winner* is announced every week! Caught a deal on a matched barrel and bolt. M16A2 upper compatible with M4 feed ramps? : r/RetroAR - Reddit Now, theres nothing wrong at all with a little polish on any and all feed ramps, which can not only be done fairly easily, it can be successfully done by most at home. - 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. Mil-spec is good for the masses, and if you want the job done it is a great start. Complete with forward assist, port door cover assembly, and A2 sight parts. They get in A2 uppers with standard feed ramps and if you want M4 ramps, they hand cut them themselves and then paint over the cuts. This is a big tip, by the way, for pistol-caliber ARs. You won't regret it. Adding M4 feedramps to A1/C7 upper - M4Carbine.net 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'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. I have an unanodized A2 upper with M4 feed ramps. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Do you have an AR barrel or feed ramp tip? Most of barrel assemblies and upper receivers on the market now have a present of M4 feed ramps. Luth-AR AR-15 A1 Stripped Upper Receiver w/ M4 Feed Ramp has been discontinued by Luth-AR and is no longer available. Was quite a few companies adding them to A2 uppers for awhile, after the fact. What Is A 10 22 Rifle And Why You Should Own A Ruger 10-22 Rifle? Your email address will not be published. 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. 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. Use with any Mil-Spec lower receiver. Ramped for M4 barrel extension. You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. If you consider this article useful, share it with anyone in need! *Must have a registered ARFCOM account to win. Insert the barrel and sharpie the cut area, then use the right bit on a dremel. Start your project with our A1 stripped upper receiver with M4 Feed Ramp. Manufactured by Rock River Arms. Take offs from 6520s and similar guns. Intl. You can change your consent at any time on our homepage under "Privacy". All Rights Reserved. M4 Feedramps - AR-15 Pro 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. That takes some practice to get it right. Given that most of us dont always have perfect access to truly genuine Mil-Spec, mil-standard parts (those actually used in issued fighting tools), were shopping based on a little part trust and a bigger part knowledge. However, I remember that RRA used to Dremel them in long ago to match M4 ramped barrel extensions Hopefully things have changed since M4 ramps have become the industry standard. ATI's stripped M4 upper receiver is forged from 7075-T6 aluminum and features M4-type feed cuts inside for reliable feeding along with T-marks on the Picatinny rail. Fulton Armory's stripped A2 USGI upper receiver is a precisely made, rock solid, well-finished Mil-spec upper receiver. Features shell deflector, forward assist housing, and provisions for installing an ejection port cover. Range Report: How Good Is the Smith and Wesson M&P FPC 9mm Folding Carbine? Again, youll find plenty of videos on spooling up hand grinders to remedy feed ramp and ejection port issues with these larger cartridges, but I strongly suggest going factory-done aftermarket. Copyright 2016 - 2023 by AdventureFootstep.com. *Must have a registered ARFCOM account to win. The difference between standard feed ramps and M4 ramps is easy to see. Im looking for a standard USGI upper for my build, if youre interested PM me and maybe we can work something out. M4 Feed ramps on barrel extensions are a solid example. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. American Firearms was established by firearm fans for firearm fans as a modern-day take on all things that go BOOM. America's Ultimate Shooting Sports Discounter, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window). The reason I decided to write about this topic at all was because there are some mil-spec features advertised on aftermarket parts that arent even really mil-spec.
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