adding m4 feed ramps to barrel

Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. 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. If this is your first visit, be sure to Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal. Then the manufacturer discontinued the barrel. The photo shows the dents and the bolt lugs line up perfectly. The best case is to have both an upper and barrel that have the feed ramps. By the time you made it work you spent more time, money, and effort than if you just bought a new barrel or upper. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. 1 is a standard and the other for use with m4 feed ramp barrels. All we do is dremmel it to match - we dont remove it and grind to any specific angle. However, I have seen more than a few basement gunsmith hackjobs using a dremel, some Jack Daniels/liquid courage, and an unsteady hand that have made a total, unrepairable mess of the job. I think your mistaking that with adding ramps to the receiver. 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. M4 feed ramps. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. upper recievers and barrels are hard to comeby. Edited April 27, 2014 by Mark Gale I have seen it done many, MANY times and if done right, it works/functions 100% without issue. hey bro nice to see you here!!! DSA has fat top, Mueller, non feed ramp uppers for $40. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. 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. A couple of times I ended up with the OK set up from the picture above. All Rights Reserved. Feed ramps being m4 or. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. Reach in through the ejection port and slide the on deck cartridge about 1/4 inch forward and observe the tip of the bullet in relationship to the barrel extension. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. I can still use the combination. I have a 723 build (w/ C7 upper) and a 727 build (A2 upper) that use 14.5" Colt M4 barrels. When carrying out feed ramp polishing, it is crucial to prioritize the frame's angles, which is a critical part of the feed ramp. 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. 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. There's a 7 degree difference between standard and M4 ramps. Finding the proper upper receiver is your best option. 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. Go back to writing school. My alternative plan is to do exactly as you describe. Adding feedramps - M4Carbine.net While this gun is a more of novelty build than a "serious use" AR, I intend to use good parts and want it to run as well as my other ARs. 3. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. 6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas It's best to have M4 ramps on both the upper and barrel. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? Paste as plain text instead, Any body need a anchor for a very small boat? Please be respectful of others. How to Clone the M16A2 Rifle - The New Rifleman M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. . 5. M4 barrel to non M4 receiver is fine, but not the other way around. If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. I have looked and looked and looked. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. Mil-spec is good for the masses, and if you want the job done it is a great start. Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd Create an account to follow your favorite communities and start taking part in conversations. The barrels also had to be modified. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Editors Note: This article was originally published in January of 2019. so im thinking I might as well just get the unramp upper. FN AR15 barrels are hammer forged using the same proprietary high-grade Chrome Moly Vanadium steel used in FN's venerable machinegun barrels produced to handle the punishment of . 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 This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. The Fora platform includes forum software by XenForo. Modify AR15 A2 barrel extension for M4 feed ramp? are all barrels w/ m4 feed ramps?? They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. Barrel Length: 16" Barrel Material: 4150V Chrome Moly Vanadium Steel Barrel Finish: Phosphate Barrel Profile: M4 Chamber: 5.56 NATO Twist Rate: 1 in 7" Extension: M4 Gas System: Carbine-Length Gas Block Type: Low Profile .750" Diameter Upper Receiver: Forged 7075 T6 Aluminum Receiver Style: M4 Flat top with feed ramps Receiver Finish: Hardcoat Anodized Is it worth the extra 50 bucks?" I suggest you get a rifle receiver. Its a miracle! With a larger diameter case body sitting down in the magazine, the tip of the bullet sits lower in relation to the chamber/bore centerline than with a .223-size round. First of Im not a gunsmith or firearms professional. Create an account to follow your favorite communities and start taking part in conversations. The M4 cut extends down beyond the edge of the barrel extension (has a scalloped appearance), and a correspondingly deeper cut in an M4-spec upper receiver effectively extends the ramps downward (they're lowered). M4-style barrel extension with Rifle-type upper - Rifle - Technical what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. I wouldn't be concerned at all with any wear after modifying an upper receiver. Copyright 1996-2023 AR15.COM LLC. Your previous content has been restored. And it appears that the bolt is slamming into the top of the bullet. Full M4 feed ramps start on the upper and continue onto the barrel extension. "It will last 5k rounds instead of 4k. Regular feed ramps are cuts into the barrel extension only, which allows guiding the round into the chamber during loading, making them a fundamental feature of many breech-loading firearm designs. You have a rifle barrel. So I'm thinking I ought to have M4 ramps in the gun because based on what I've read: Rifle receiver+M4 barrel = "OK" but not ideal. 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. BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. 4. However, they do have M4 feed-ramps which is not clone correct. 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. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. M16's fed pretty well before the M4 feed ramps were introduced. Feed ramps on barrel extensions are a good example. I had seen these pix years ago and dismissed the idea of mix and match. 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! is the m4 feedramp common in barrel extensions? BCM 14.5" MK2 Upper (Standard) w/ 13" MLOK Handguard - FDE Adding M4 feedramps to A1/C7 upper - M4Carbine.net 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. Watch a video about our Modern Series AR barrel: 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. Metal cases ammunition such as Wolf through an M4 clone?

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