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.
Making a non M4 feed ramp barrel work in an M4 feed ramp upper. One new winner* is announced every week! 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. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! I am glad to know that I need to look for changes in design and the differences in the A2 and A4 feed ramp / rails.
AR Tech Tip - Checking M4 Ramps for overhang - YouTube Notice how the ramp starts on the barrel extension and not in the receiver. I didnt think anything about it having M4 feed ramps. Remember less is more, little by little. 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. 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 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.
Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. You have a rifle barrel. 308 m5 using m4 feed ramps, which I belive are for the smaller round like. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. All Rights Reserved.
P2A PATRIOT 22" 223 Wylde 1/7 Rifle Length Melonite Fluted Heavy Bull This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. 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. Please allow 5~10 days for assembly and testing before ship date. Full M4 feed ramps are on both the upper and barrel extension. Good call. Thats why AR10s- And Scar heavies exist for. Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks.
Adding feedramps - M4Carbine.net 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. These units actually feature the NON-F-Marked (correct) front sight base. 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. All we do is dremmel it to match - we dont remove it and grind to any specific angle.
Go slow and you'll be done in no time. Copyright 1996-2023 AR15.COM LLC. Recommend using a gunsmith this route too if you are not comfortable. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. The barrel Throat is the second most critical component after angles and should be polished with utmost care. I'm assuming that you only need the ramps from one or the other. So I called.
Barrel FAQs | Ballistic Advantage Ok, So, in short, I've got a barrel on my Armalite upper (with M4 feed ramps in the upper) that has standard AR-15 (non-M4) ramps. 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. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. One of the AR15 engineers under Gene Stoner pretty much said that the M4 isn't a good platform, especially once the gas port erodes a bit. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. A forum community dedicated to drag racing drivers and enthusiasts. But, as with anything else, this work can go too far. You will be able to leave a comment after signing in, AR15Armory.com Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. 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. The ramps on the regular rifle-type extension are cut just to the edge of the extension. are all barrels w/ m4 feed ramps?? 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. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Our 6mm ARC barrel come standard with 1-7.5 Twist, M4 Feed Ramps and gas tube. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. So, I had purchased a 458 upper. However Ive built numerous ar15 and lr308 rifles and pistols. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. 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. 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. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one.
Standard vs M4 Feed Ramps, what's the difference #1056 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. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. By I had seen these pix years ago and dismissed the idea of mix and match. I bought a .458 upper to go with it, with the extra internal clearance cut before anodizing.
M4-style barrel extension with Rifle-type upper - Rifle - Technical Does it make a big difference? It's near impossible to replace the carry handle upper I have these days, and finding a colt chrome lined 20" light weight barrel isn't a walk in the park either.
DoubleStar M4 clone opinions | Survivalist Forum There is a picture of the various options, hopefully another poster can link them.
Adding M4 feedramps to A1/C7 upper - M4Carbine.net Go back to writing school. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. 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. I cant advise on that one folks. Man, its crazy how many of yall have absolutely no idea why you do what you do. The rifle-platform M16s dont use them. Ready to drop onto a complete lower receiver. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Backing up a ton: Any and all AR-15 barrel extensions have feed ramps. Check often for fit. 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 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! They were not intended to be super long range man killers. In case My barrel is rifle ramp it won't be so bad after all.
AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 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. http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. April 23, 2014 in Rifle - Technical. I prefer them. Not saying a really good gunsmith cant do it, just that theres a bit of an involved process. 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? I picked up a side charging upper from Sundevil last year. This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation. 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. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. So I'm working on my first build, and I'm a little confused. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. When I function tested it the first time with live half-jacketed rounds I had the worst FTF jam I have ever experienced. The Bullet ~ Handguns, Rifles and Shotguns, http://thearguys.com/ar-facts/m4-feed-ramps/. Please be respectful of others. 2. 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. Description. All uppers are assembled cleaned and tested before shipping. Ideally both. The mil actually only specs M4 feed ramps for use in its M4s. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). I'm planning on replacing my forearm with a Larue 13.5. The extension is the part at the end of the barrel that fits inside the upper. May 17, 2008 in The Armorer. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. This 20" BCM barrel is machined from SS410 stainless steel. 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? JavaScript is disabled. Either way is good and both types work great with semi auto only guns. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. 2. Absolutely nothing to do with casing diameter, or whatever other weird sht you guys imagine. You absolutely do not want it the other way around however. 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? I can probably get the upper reciever first. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! It's an interesting question. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. Share it in the comments section. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. I use it for hunting dogs only. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. M4 feed ramps will extend the barrel extension and the upper receiver. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. It is removeable with a special wrench and a barrel clamp/vise. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. Modern Series Barrels. The M4 was the first (allegedy) carbine length gas system. If it was some flat top + 16" FSB barrel id just swap upper/barrel, but this is a little more challenging to do that with. Reliability is the main concern for me when I re-barrel this rifle. i have an extra brand new M4 barrel extension ramp to replace a rifle ramp. The ramps are in the barrel extension. . There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. if you are OK with 3MOA, you might go 20,000 rounds! $101.95. If a barrel comes with the feed ramps could I take them off? I can still use the combination. In most cases the ramps only help during full auto mode while cycling at a high rate. 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. Site towers are not "F" marked SPECS: Length- 14.5". AAC and anybody else that has any reasonable expectation of quality and reliability use an M4 feed ramp. If this is your first visit, be sure to
You are using an out of date browser. What is the difference between Modern, Performance, and Premium Series Barrels? Create an account to follow your favorite communities and start taking part in conversations. I guess it depends on what your relationship to the necessary shop activities is.
6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas Thanks! 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. So there's a lot more going on with rounds bouncing up and down in the mags etc. 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 By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. "A Bad Day At The Range Is Better Than A Great Day Working". For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. Earlfillmore 13 hr. Mil-spec is good for the masses, and if you want the job done it is a great start.
M4 feed ramp barrel in a non M4 ramp upper - AR15.COM The photo shows the dents and the bolt lugs line up perfectly. Does anyone have a follow up that confirms or denies my claim? 1 is a standard and the other for use with m4 feed ramp barrels. There's a 7 degree difference between standard and M4 ramps.
How to Polish a Feedramp Quick and Easy | Firearms Talk Modify AR15 A2 barrel extension for M4 feed ramp? Don't forget read more information about it here! - 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. 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. M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. Pasted as rich text. Feed ramps on barrel extensions are a good example. For the purposes of this chapter, we'll call the new one the M4, and the old one the AR. 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. BrianEnos.com The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. In military situations, it is advantageous for rifles to function with damaged, worn, or less than ideally serviceable magazines. Gun smith said , not head spaced properly. Would not feed to save its life! 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 . If you ever have an issue, then look at getting a correct barrel for the upper. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. Forged 7075-T6 aluminum is harder than a bulls balls.
M4 Feedramps - AR-15 Pro 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. 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 M-16/M4 are great weapons. Not all mil-spec features advertised on the product information are the real mil-specs.
m4 feed ramps - The Armorer - AR15Armory.com All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. For a better experience, please enable JavaScript in your browser before proceeding. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. By Yamil Sued August 6, 2021. You have the option of barrel type, thread, fluting, finish type and to add a match bolt. After two months of back and forth, cleaned up the feed ramps. Im an old vet, now retired and looking to build some ARs as a hobby to keep me doing something that I will enjoy. 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. practical_man If you consider this article useful, share it with anyone in need! As suggested, its best to match the upper and barrel extension no worries that way. Sent back again.
PRI MK 12 Mod H 16" 223/5.56 Upper w/ 1-7 twist Powered by Invision Community. A4 Complete Upper Receiver. Just because you can, doesn't mean you should. The first reason is that they are, indeed, better. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. hey bro nice to see you here!!! I read in Bravo company that there are 2 kinds of flat top upper. I think your mistaking that with adding ramps to the receiver. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . I notice that's a Gibbz (or Gibbz-type) upper. A couple of times I ended up with the OK set up from the picture above. Press J to jump to the feed. The best case is to have both an upper and barrel that have the feed ramps.
That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. When carrying out feed ramp polishing, it is crucial to prioritize the frame's angles, which is a critical part of the feed ramp.