adding m4 feed ramps to barrel

document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. I'd rather not spent the money to get it cut to the specific length I need, FSB installed, etc just to have it immediately not work and have to sort out then or start from square one with a new barrel. All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. With the increased use of larger-diameter cased cartridges, the M4 feed ramps are proving their values when using them in those cartridges. M4 barrel to non M4 receiver is fine, but not the other way around. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. Bullets tend to bump, snag, and stub on these guns. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. I have a non ramped barrel in a ramped upper, feeds fine. Here's some info from Randall Rauch aka www.ar15barrels.com, if your barrel extension has M4 ramps you should have an upper receiver also with the ramps. Feels like a silly question now that it makes sense. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Guess what? Just put it in and shoot it. I built the upper using a Mega upper with a Compass Lake 18" barrel. Good call. Remember less is more, little by little. No need to alter the upper. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. Copyright 2016 - 2023 by AdventureFootstep.com. 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). Go back to writing school. We have four combinations here: Barrels are Douglas 416 stainless steel with 1-7 twist with M4 feed ramps Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? In case My barrel is rifle ramp it won't be so bad after all. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. Amazing what happens in a thread over a simple question. Its not a big deal but still an important thing to remember and understand. 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. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. They are better! 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I got my help from this thread, and thank you again to ORD. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. Also, barrel life is relative. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. Your email address will not be published. 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. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. 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. What's the difference? Damaged Ak front end Barrel in Trunnion with or without sight bases. CARBON-15 Stripped Lower Receiver The upper I want to rebarrel is modified for Service Rifle competition so it's not quite as cheap as buying another $89 upper from Aero. i have the rifle barrel. First, the M4 barrel and non-M4 upper isnt likely to cause issues, but due to the relief cut on an M4-spec upper, there will be a gap that works like an edge that most definitely can snag the bullet and stub the round. Only took a few minutes. Backing up a ton: Any and all AR-15 barrel extensions have feed ramps. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. Bear Creek Arsenal Barrels - 6.5 Grendel Type 2 Barrel This Gorilla Machining AR-15 16" heavy Black Nitride 6.5 Grendel barrel has a Carbine length gas system with a 1:8 twist. The first reason is that they are, indeed, better. You can run M4 cut barrels with rifle receivers, but not the other way around as it will create at catch that can hang up the bullets. M4 can better explain their benefit, although they help with more reliable feeding. this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. Create an account to follow your favorite communities and start taking part in conversations. 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. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. 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. I have looked and looked and looked. By Is it kosher to add M4 feed ramps to a standard upper to match an m4 ramped barrel? Press J to jump to the feed. 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 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. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. These units actually feature the NON-F-Marked (correct) front sight base. Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. M4 feed ramps. I use it for hunting dogs only. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. check out the. Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. They guide the bullet up and into the chamber. The extension is the part at the end of the barrel that fits inside the upper. Ready to drop onto a complete lower receiver. You can post now and register later. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Press J to jump to the feed. Thanks. That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. It may not display this or other websites correctly. However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. Do you have an AR barrel or feed ramp tip? One new winner* is announced every week! So, an M4 feed ramp includes the barrel extension and the upper. The barrel is supposed to have the M4 feed ramps. So, I had purchased a 458 upper. 2. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. Sent back again. A feed ramp is a basic feature of many breech loading cartridge firearm designs. can you buy feed ramps individually? Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. It is milled out of 6061 T6. Edited April 27, 2014 by Mark Gale So I'm working on my first build, and I'm a little confused. The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. Can someone recommend or point me in the right direction of a good quality upper receiver for an SPR build that does not have M4 feed ramp cuts in it? Powered by Invision Community. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. The parts are interchangeable. How long your barrel "lasts" depends on what your accuracy threshold is before you decide it is too bad to keep using. pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About 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). 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. Read Now. M4A1s run at 950 rounds per minute in full auto and even 950+ rounds per minute as the gas port erodes open bigger and bigger with wear and allows them to run even faster and much more violent. 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. Does it make a big difference? They were not intended to be super long range man killers. hey bro nice to see you here!!! By Yamil Sued August 6, 2021. You need to match up barrels to receivers for optimum performance. Seems M4 is all the rage these days. Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. A4 Complete Upper Receiver. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Feeds flawlessly. practical_man Gun smith said , not head spaced properly. Having been in military supply, I know that what the mil-spec means: it gets the minimum job done for thousands (millions) of parts/systems. Your link has been automatically embedded. Go slow and you'll be done in no time. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. I wouldn't be concerned at all with any wear after modifying an upper receiver. I suggest you get a rifle receiver. DSA has fat top, Mueller, non feed ramp uppers for $40. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. Either way is good and both types work great with semi auto only guns. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. 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. I'd get jams from bullets hitting the back of the upper so I took a small round file and made the M4 ramps in the upper. 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 M4 feed ramps will extend the barrel extension and the upper receiver. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. The M4 Style Feed ramps And Barrel Extension Provide Consistent Feeding And The Matte Black Manganese Phosphate Finish resists External Corrosion And OxidationLength: 14.70"Model: AR-15Finish: Manganese PhosphateBarrel Type: Carbine LengthBarrel Features: Chrome-LinedManufacturer: FN Mfg Number: 20-100405Model: AR-15 . I recently picked up a barrel that I thought had M4 feed ramps, but it doesn't line up with my M4 feed ramp upper. Went back to the sellers website and found I was not the only one with problems. I can assure you that most mods that deviate from the original design aren't 100% reliable. 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. I guess it depends on what your relationship to the necessary shop activities is. Clear editor. Thread: Adding M4 feedramps to A1/C7 upper. M16s and M16-A1s run at 750 rounds per minute in full auto. Ideally both. As they are becoming more and more a standard, and certainly do not do any harm to us. ago KrinkyDink2 9 hr. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of . And that is the important thing! I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? Semi autos run slower than full autos. Factory said its fine . which is basicallly an m16a1 cut down. Copyright 1996-2023 AR15.COM LLC. If I can correct an issue before it's an issue that is preferred. 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. On AR9's, I understand the distance between the Mag Follower and the Feed Ramp is a known complication in the design. You can run M4 cut barrels with rifle receivers, but not the other way around as it will create at catch that can hang up the bullets. First of Im not a gunsmith or firearms professional. Reliability is the main concern for me when I re-barrel this rifle. I notice that's a Gibbz (or Gibbz-type) upper. Upper Receiver, A4, Flat Top, USGI, Numbered, AR-Stoner Upper Receiver Stripped AR-15 A3 Flat-Top Matte, Black River Tactical 16 Cold Hammer Forged Optimum Barrel Accuracy Evaluation. - 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. Share it in the comments section. When carrying out feed ramp polishing, it is crucial to prioritize the frame's angles, which is a critical part of the feed ramp. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Mil-spec is good for the masses, and if you want the job done it is a great start. What is an m4 feed ramp? 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. Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? LanceRiley, Powered by Invision Community, M4-style barrel extension with Rifle-type upper. 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. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. 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. 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. Avoid Polishing Too Lightly Or Too Roughly Copyright 1996-2023 AR15.COM LLC. The barrel Throat is the second most critical component after angles and should be polished with utmost care. I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. I found the article very informative. -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! JavaScript is disabled. what does it do?? This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. For this test, I used a Colt upper with M4 feed ramps and a SOCOM heavy 14.5 barrel, just like what is used in the military. Married pretty well with my Seekins machined lower. Some, me included, have said that the M4 ramps are a help to some of the larger-diameter cartridges in use, such as 6.5 Grendel or .22 Nosler. This is a big tip, by the way, for pistol-caliber ARs. The Mission of Cheaper Than Dirt! Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Its also recommended you polish the ramps once youve achieved the appropriate angle. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. Then you can get a regular rifle barrel for the upper with no ramps. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces Most of barrel assemblies and upper receivers on the market now have a present of M4 feed ramps. 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. I had seen these pix years ago and dismissed the idea of mix and match. Insert the barrel and sharpie the cut area, then use the right bit on a dremel. I'll probably build a pistol out of this one. My experience with ARs is all A-1s. So like ORD says it is entirely 100% possible and plenty of people do it, but I would rather not do any work to this perfect barrel. . It's best to use rifle/rifle combo or M4/M4. Its a miracle! It has 2 ramps cut into the receiver to help the rounds feed into the chamber. BrianEnos.com You absolutely do not want it the other way around however. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Thanks for explaining the feed ramp topic in a couple of different ways. JavaScript is disabled. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. If this is your first visit, be sure to Full M4 feed ramps start on the upper and continue onto the barrel extension. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. Single Action and Double Action Which One Is Better For You? While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on.