As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. #2. Good call. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. The M4 was the first (allegedy) carbine length gas system. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. Feels like a silly question now that it makes sense. 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. 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
308 m5 using m4 feed ramps, which I belive are for the smaller round like.
Modify AR15 A2 barrel extension for M4 feed ramp? 5. 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). 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 just need a little guidance on this and I'm having trouble getting good results from Google. When carrying out feed ramp polishing, it is crucial to prioritize the frame's angles, which is a critical part of the feed ramp. 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. DSA has fat top, Mueller, non feed ramp uppers for $40. so im thinking I might as well just get the unramp upper. Its also recommended you polish the ramps once youve achieved the appropriate angle. Thats why AR10s- And Scar heavies exist for. Gas block area is .750 diameter.
Rifle vs m4 feed ramps - AR15.COM Thanks! 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. Single Action and Double Action Which One Is Better For You? Powered by Invision Community. 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. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Don't ever put non M4 ramped barrel on a M4 ramped upper receiver. Powered by Invision Community, M4-style barrel extension with Rifle-type upper.
Upper Receiver WITHOUT M4 Feed Ramp Cuts? - Sniper's Hide Forum And that the M4s and M4A1s are issued M855 which has a slight difference in bullet shape vs. the older 55gr M193 BALL. The manufacturer said they had sold hundreds of barrels with out problems reported. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? Does it make a big difference? Copyright 1996-2023 AR15.COM LLC. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. Mil-spec is good for the masses, and if you want the job done it is a great start. The barrels also had to be modified. All Rights Reserved. I've seen that pic, it is a good reference.
Should M4 feed ramps come with the barrel or upper? : r/ar15 - reddit Barrels are Douglas 416 stainless steel with 1-7 twist with M4 feed ramps 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. I don't quite trust myself to give it a go, but if that's all there is to it I'm hoping they can do it for a reasonable price. I can probably get the upper reciever first. Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. Any use of this content without express written consent is prohibited. check out the. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. If you aren't 110% comfortable with doing the job, and you do not have all the tools and equipment to do it properly, then have a smith do it for you. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? Pasted as rich text. Hasn't misfed yet, through initial break in up through 1k rounds, and that's mag length ammo. aaargh.. that's the setup I hate to see. Caught a deal on a matched barrel and bolt. 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. Read Now. Looking For Bear Creek Arsenal Barrels Review?
Surplus Colt 14.5 M4 SOCOM Carbine Barrel 1/7 Twist This 20" BCM barrel is machined from SS410 stainless steel. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Little polish. Display as a link instead,
Douglas 5.56 Stainless Steel Barrel 18" - 1~7 twist This is a big tip, by the way, for pistol-caliber ARs. Brevity matters. Please allow 5~10 days for assembly and testing before ship date. pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. can the barrel extension be bought individualy?
6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas M4 feed ramps are not an original design, they were designed for the M4 In fact, the . 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.
11.5", SBN, 1:7, 5.56 NATO Barrel is the m4 feedramp common in barrel extensions? 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 Sorta. 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. Not saying a really good gunsmith cant do it, just that theres a bit of an involved process.
M855A1 5.56mm NATO Penetrator Ammo Feed Ramp Issues: Real, Hype or just Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. We're a little past that point as I already own both the barrel and receiver, both of which cant easily be replaced or swapped for a decent price.
Cutting M4 feed ramps - Calguns.net colt A1E1 733 uppers didn't have extended carbine feedramps ? Was sort of worried about how it would run with an 11.5" barrel and mismatched ramps, but it sounds like it should be good to go either way. 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. 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?
Ar15 Upper receivers A2 and Colt A1, M4 and - Northwest Firearms Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd 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. Home Firearms Figuring Out Feed Ramps. 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. It is a tightly machined and polished piece of metal which guides a cartridge from the top of the magazine into the firing chamber of the barrel. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation.
How to Polish a Feedramp Quick and Easy | Firearms Talk After two months of back and forth, cleaned up the feed ramps. Most work performed while-you-wait, evening and saturday appointments available. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. 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. All Rights Reserved. M4 feed ramps will extend the barrel extension and the upper receiver. They are better! The Bullet ~ Handguns, Rifles and Shotguns, http://thearguys.com/ar-facts/m4-feed-ramps/.
M4-style barrel extension with Rifle-type upper - Rifle - Technical Ideally both. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. So, lets glide down these lines below to erase your misconceptions about them. They provide a lower, wider, and smoother entry for any round of ammo, whether its necessary or not. All uppers are assembled cleaned and tested before shipping. Experts advise on 31 degrees+30 minus-zip. I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. They were not intended to be super long range man killers. Which Model Colt 1911 is For Me? I picked up a side charging upper from Sundevil last year. 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. How long your barrel "lasts" depends on what your accuracy threshold is before you decide it is too bad to keep using. They guide the bullet up and into the chamber. You need to match up barrels to receivers for optimum performance. Upload or insert images from URL. 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 That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. instead of mil-spec. Modern Series Barrels. I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. Press question mark to learn the rest of the keyboard shortcuts.
M4 Feedramps - AR-15 Pro The photo shows the dents and the bolt lugs line up perfectly. I didnt think anything about it having M4 feed ramps. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. The first reason is that they are, indeed, better. It is removeable with a special wrench and a barrel clamp/vise. M4 can better explain their benefit, although they help with more reliable feeding. 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. BEFORE YOU GO MODIFYING IT, check your headspace.I have a Gibbz upper in my junk drawer because the upper -- for some reason -- wouldn't allow a perfectly good bolt (as checked by Criterion) to headspace correctly on a Criterion barrel, with the bolt installed in the carrier. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. I had seen these pix years ago and dismissed the idea of mix and match. Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. Either way is good and both types work great with semi auto only guns. I don't have much to add re: feed ramps, but. If a barrel comes with the feed ramps could I take them off? Full M4 feed ramps are on both the upper and barrel extension. 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. 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. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. Its easier to add feed ramps to the receiver not so easy to add them to the barrel extension. Notice how the ramp starts on the barrel extension and not in the receiver. 50 bucks one way or the other on the barrel ain't squat! Do you have an AR barrel or feed ramp tip? M4 barrel to non M4 receiver is fine, but not the other way around. As they are becoming more and more a standard, and certainly do not do any harm to us. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. Guess what? One new winner* is announced every week! By Yamil Sued August 6, 2021. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. All we do is dremmel it to match - we dont remove it and grind to any specific angle. M4 ramps help in feeding in for carbine in full auto. You will be able to leave a comment after signing in, AR15Armory.com I notice that's a Gibbz (or Gibbz-type) upper. By using the M4 feed ramps for your firearm, you could pick up an increased percentage of the rounds, and feeding reliability would be improved.
1 is a standard and the other for use with m4 feed ramp barrels. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces It's an interesting question. A feed ramp is a basic feature of many breech loading cartridge firearm designs. April 23, 2014 in Rifle - Technical. So, I had purchased a 458 upper. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Go back to writing school. 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 am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. 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. Now move move the on deck cartridge forward to the 3/8 of inch position and again note the position of the tip of the bullet in relationship to the barrel extension.
Barrel FAQs | Ballistic Advantage Seems M4 is all the rage these days. Just because you can, doesn't mean you should. You must log in or register to reply here. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . Lol. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. Thats true overall and good to keep in mind. Will my A3 upper reciever work with my M4 barrel extention.According to some or your posts they will.Thanks Bill. The mil actually only specs M4 feed ramps for use in its M4s. So there's a lot more going on with rounds bouncing up and down in the mags etc. Thanks for explaining the feed ramp topic in a couple of different ways. 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. Married pretty well with my Seekins machined lower.
I like getting another Upper idea then you could end up with two rifles! if you are OK with 3MOA, you might go 20,000 rounds! Higher pressure equte to parts (bcg, buffer, buffer spring, ROUNDS, etc) experiencing much higher wear/tear. If your upper isn't showing signs of bullets rubbing on the aluminum under the barrel extension, you should be good with M4 ramps. For a better experience, please enable JavaScript in your browser before proceeding. 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. Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? You are using an out of date browser. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting.
FN AR-15 5.56X45mm Nato 14.70" M4 Profile Barrel Carbine Length Gas Only took a few minutes. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. i have the rifle barrel. So, what is the difference between M4 feed ramps and regular ones?
You have the option of barrel type, thread, fluting, finish type and to add a match bolt. The best case is to have both an upper and barrel that have the feed ramps. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. Any body need a anchor for a very small boat? This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY.
AR15 Feed Ramp Cut & Polish Kit - School of the American Rifle For use by barrel manufacturers. The closest brand new barrel you are likely to find is the Windham Weaponry 20 inch 1/7 twist chrome lined barrel. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Thank you for answering the question do well.
[WTB] Black A1 carry handle upper NON-m4 feed ramp $200 A forum community dedicated to drag racing drivers and enthusiasts.
What's the difference? Ready to drop onto a complete lower receiver. Amazing what happens in a thread over a simple question. 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. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. True, which is why they're not even needed in semi autos. 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).