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Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. A forum community dedicated to drag racing drivers and enthusiasts. Edited April 27, 2014 by Mark Gale 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. I can still use the combination. Remember less is more, little by little. This has been my concern with modifying the aluminum parts. I wouldn't be concerned at all with any wear after modifying an upper receiver. If it's happening regularly, check the magazines you are using for serviceability. All uppers are assembled cleaned and tested before shipping. I notice that's a Gibbz (or Gibbz-type) upper. Olympic Arms Upper receiver with rear sight assembly and forward assist and dust cover has M4 feed ramps $260 View attachment 1016575 View attachment 1016576 Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. and add them to non-m4 barrels.? so im thinking I might as well just get the unramp upper. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. I like getting another Upper idea then you could end up with two rifles! If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. 308 m5 using m4 feed ramps, which I belive are for the smaller round like. When I function tested it the first time with live half-jacketed rounds I had the worst FTF jam I have ever experienced. So I called. I think your mistaking that with adding ramps to the receiver. 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. 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 The last is using the best and right ammo for the job. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. In military situations, it is advantageous for rifles to function with damaged, worn, or less than ideally serviceable magazines. Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of . By Yamil Sued August 6, 2021. Single Action and Double Action Which One Is Better For You? 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. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. And that the M4s and M4A1s are issued M855 which has a slight difference in bullet shape vs. the older 55gr M193 BALL. BrianEnos.com The barrel extension and the receiver both have to have the cuts. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. LanceRiley, Clear editor. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Thread: Adding M4 feedramps to A1/C7 upper. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. from my service in the 70s to my personal weapons, all of my ARs are early 1970 slab sided Colt SP1s. 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 put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. are all barrels w/ m4 feed ramps?? Man, its crazy how many of yall have absolutely no idea why you do what you do. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. You want them to match. Sent back again. FFL Fax: 866-721-8691. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. 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 . Looking to spend $180-250 (depending on condition, forge mark and if a rear sight is included or not.) The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. Ideally both. 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. 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. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Will my A3 upper reciever work with my M4 barrel extention.According to some or your posts they will.Thanks Bill. Full M4 feed ramps are on both the upper and barrel extension. 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. 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. Is getting it as part of the upper better? Barrels are Douglas 416 stainless steel with 1-7 twist with M4 feed ramps The Fora platform includes forum software by XenForo. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. Bullets tend to bump, snag, and stub on these guns. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? I'll probably build a pistol out of this one. The barrel blanks available are made from 416 Stainless Steel. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. 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. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. upper recievers and barrels are hard to comeby. It's best to use rifle/rifle combo or M4/M4. What is an m4 feed ramp? You also repeated yourself. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. The rifle-platform M16s dont use them. Is one better than the other? I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. The ramps on the regular rifle-type extension are cut just to the edge of the extension. pictures would help. 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. Required fields are marked *. They are better! Some argue that, factually, its a step to enable a smoother feeding. When you need to nail something you use a hammer not a wrench. In most cases the ramps only help during full auto mode while cycling at a high rate. M4 feed ramps will extend the barrel extension and the upper receiver. what does it do?? Most of barrel assemblies and upper receivers on the market now have a present of M4 feed ramps. Editors Note: This article was originally published in January of 2019. I have seen it done many, MANY times and if done right, it works/functions 100% without issue. 2. M4 Feed ramps on barrel extensions are a solid example. Display as a link instead, The Mission of Cheaper Than Dirt! AR9 - Help diagnosing feeding issue. hey bro nice to see you here!!! Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. 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. JavaScript is disabled. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. You need to match up barrels to receivers for optimum performance. An upper without feed ramps can be used with a barrel that has them as the majority of the ramp is on the barrel extension. M4 feed ramps. 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. I have looked and looked and looked. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Copyright 1996-2023 AR15.COM LLC. 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. 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. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. For new construction barrels only. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. Is it worth the extra 50 bucks?" Your link has been automatically embedded. 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. Interesting reading. So, an M4 feed ramp includes the barrel extension and the upper. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? Feed ramps being m4 or. Proper maintenance and lubrication. 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. It is milled out of 6061 T6. Notice how the ramp starts on the barrel extension and not in the receiver. is the m4 feedramp common in barrel extensions? If this is your first visit, be sure to Don't forget read more information about it here! You will be able to leave a comment after signing in, AR15Armory.com All things being equal and having used both weapons extensively, Id rather have the feed Ramps. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. Only took a few minutes. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 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? 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. If I can correct an issue before it's an issue that is preferred. This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. Does NOT include pin Most work performed while-you-wait, evening and saturday appointments available. I use it for hunting dogs only. I don't have much to add re: feed ramps, but. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. 50 bucks one way or the other on the barrel ain't squat! BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. Notify me of follow-up comments by email. 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. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. I can assure you that most mods that deviate from the original design aren't 100% reliable. 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. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. if you are OK with 3MOA, you might go 20,000 rounds! M16's fed pretty well before the M4 feed ramps were introduced. Modern Series Barrels. Also, barrel life is relative. If you consider this article useful, share it with anyone in need! 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. - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! Barrel, sight and trigger work on most pistols and shotguns. Feed ramps on barrel extensions are a good example. 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. 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'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. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About M4 ramps help in feeding in for carbine in full auto. The best case is to have both an upper and barrel that have the feed ramps. #2. Damaged Ak front end Barrel in Trunnion with or without sight bases. But, as with anything else, this work can go too far. 4. Either way is good and both types work great with semi auto only guns. So, I had purchased a 458 upper. Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. 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? Its not a big deal but still an important thing to remember and understand. First of Im not a gunsmith or firearms professional. You have the option of barrel type, thread, fluting, finish type and to add a match bolt. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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). 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. Earlfillmore 13 hr. For the purposes of this chapter, we'll call the new one the M4, and the old one the AR. You need to match up barrels to receivers for optimum performance. A couple of times I ended up with the OK set up from the picture above. 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. Use this M4 Barrel extention with M4 feedramps. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. Gun smith said , not head spaced properly. 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. Thats why AR10s- And Scar heavies exist for. You must log in or register to reply here. Thanks. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. Either way is good and both types work great with semi auto only guns. 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. Description. Its easier to add feed ramps to the receiver not so easy to add them to the barrel extension. Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks. M4 can better explain their benefit, although they help with more reliable feeding. However, they do have M4 feed-ramps which is not clone correct. Thanks! It was in the last few issues of SAR. JavaScript is disabled. The difference between standard feed ramps and M4 ramps is easy to see. Please allow 5~10 days for assembly and testing before ship date. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! Full M4 feed ramps start on the upper and continue onto the barrel extension. I've thought about it myself, and I'd like to see test results if any exist, displaying what reliability effect M4 ramps have on other barrel lengths. 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. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. My alternative plan is to do exactly as you describe. Reliability is the main concern for me when I re-barrel this rifle. I didnt think anything about it having M4 feed ramps. I've seen several places say you just need a 1/8" chainsaw sharpening bit and a Dremel to fix it. ago Costs about $40-50 to have the feed ramps reprofiled from what I can gather. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces All we do is dremmel it to match - we dont remove it and grind to any specific angle. Thank you for answering the question do well. Anodized red parts. All Rights Reserved. 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. 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 (theyre lowered). You can post now and register later. Theres a bit more to it than just polishing. The parts are interchangeable. The Bullet ~ Handguns, Rifles and Shotguns, http://thearguys.com/ar-facts/m4-feed-ramps/. Is it kosher to add M4 feed ramps to a standard upper to match an m4 ramped barrel? 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). I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. I had seen these pix years ago and dismissed the idea of mix and match. Not all mil-spec features advertised on the product information are the real mil-specs. ago KrinkyDink2 9 hr. I found the article very informative. The manufacturer said they had sold hundreds of barrels with out problems reported. Inadequate knowledge about these feed ramps can lead to lots of problems with barrels because they are essential parts to guide the bullet up and into the chamber. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. Brevity matters. The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). well.. it's kinda hard to get stuff in this part of the world. I read in Bravo company that there are 2 kinds of flat top upper. 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 have the rifle barrel. 30 cal. 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'm planning on replacing my forearm with a Larue 13.5. 5. Share it in the comments section. Its a miracle! 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. An older-version (or A2-style) feed ramp is cut only on the barrel extension itself (top).