adding m4 feed ramps to barrel adding m4 feed ramps to barrel

I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. The rifle-platform M16s dont use them. I recommend putting any AR-platform firearm together with a matched M4 barrel extension and upper receiver set, just because you can. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. Barrel customizations are also available. I bought a .458 upper to go with it, with the extra internal clearance cut before anodizing. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. The manufacturer said they had sold hundreds of barrels with out problems reported. All Rights Reserved. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? I've seen that pic, it is a good reference. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I prefer them. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . As suggested, its best to match the upper and barrel extension no worries that way. 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. 2. Most work performed while-you-wait, evening and saturday appointments available. #2. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? Amazing what happens in a thread over a simple question. aaargh.. that's the setup I hate to see. I got my help from this thread, and thank you again to ORD. Feed ramps on barrel extensions are a good example. Hasn't misfed yet, through initial break in up through 1k rounds, and that's mag length ammo. This is a big tip, by the way, for pistol-caliber ARs. 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 A couple of times I ended up with the OK set up from the picture above. http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. if you are OK with 3MOA, you might go 20,000 rounds! Will my A3 upper reciever work with my M4 barrel extention.According to some or your posts they will.Thanks Bill. Feels like a silly question now that it makes sense. -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! 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. All Rights Reserved. This can lead to a rare but odd situation; barrel and receiver mismatch. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. The best case is to have both an upper and barrel that have the feed ramps. ago KrinkyDink2 9 hr. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. I'm planning on replacing my forearm with a Larue 13.5. BrianEnos.com 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 picked up a side charging upper from Sundevil last year. The M-16/M4 are great weapons. 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. Again, youll find plenty of videos on spooling up hand grinders to remedy feed ramp and ejection port issues with these larger cartridges, but I strongly suggest going factory-done aftermarket. Go back to writing school. The parts are interchangeable. It was in the last few issues of SAR. May 17, 2008 in The Armorer. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I just need a little guidance on this and I'm having trouble getting good results from Google. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. 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. Upload or insert images from URL. That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. Everything that you have on your side to make any weapons more reliable and work when it absolutely needs to is a plus. The best case is to have both an upper and barrel that have the feed ramps. and add them to non-m4 barrels.? Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. There is a picture of the various options, hopefully another poster can link them. I've seen several places say you just need a 1/8" chainsaw sharpening bit and a Dremel to fix it. I'm a machinist in the aerospace industry and lucky enough to have unrestricted access to a really nice machine shop so the modification from rifle to M4 feed ramps is no sweat, I've done it once before a few years back with a .250" carbide cutter in the mill for a friend and it came out looking indistinguishable from a true M4 extension. Those ramps line up with the barrel, which are cut deeper than on a rifle 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. 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. My alternative plan is to do exactly as you describe. 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. If you don't clean it but demand 3/4MOA you might get 1,500. Required fields are marked *. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. We have four combinations here: Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. Thread: Adding M4 feedramps to A1/C7 upper. Id just get one for that barrel and find a barrel with m4 extension for the upper you already have. 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. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Feeds flawlessly. If your upper isn't showing signs of bullets rubbing on the aluminum under the barrel extension, you should be good with M4 ramps. And that is the important thing! 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. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Mil-spec is good for the masses, and if you want the job done it is a great start. In most cases the ramps only help during full auto mode while cycling at a high rate. Thank you for answering the question do well. It has 2 ramps cut into the receiver to help the rounds feed into the chamber. colt A1E1 733 uppers didn't have extended carbine feedramps ? The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. Your link has been automatically embedded. But, as with anything else, this work can go too far. Seems counter intuitive to recommend an M4 cut upper, especially if the barrel Im looking at has the rifle feed ramp (not M4 cut). Little polish. Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. Jams and misfires. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. 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. If this is your first visit, be sure to 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 AR9 - Help diagnosing feeding issue. This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. Reliability is the main concern for me when I re-barrel this rifle. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. As they are becoming more and more a standard, and certainly do not do any harm to us. A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. Which Model Colt 1911 is For Me? For a better experience, please enable JavaScript in your browser before proceeding. 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. All we do is dremmel it to match - we dont remove it and grind to any specific angle. M4 Feed ramps on barrel extensions are a solid example. 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. M4 feed ramps will extend the barrel extension and the upper receiver. Its also recommended you polish the ramps once youve achieved the appropriate angle. Semi autos run slower than full autos. 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? *Must have a registered ARFCOM account to win. This has been my concern with modifying the aluminum parts. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. So the engineers lowered the feed rampa into the receiver. I think your mistaking that with adding ramps to the receiver. Damaged Ak front end Barrel in Trunnion with or without sight bases. Either way is good and both types work great with semi auto only guns. 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. The photo shows the dents and the bolt lugs line up perfectly. All comments are held for moderation and will appear after approval. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. 3. 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. M16's fed pretty well before the M4 feed ramps were introduced. Its easier to add feed ramps to the receiver not so easy to add them to the barrel extension. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. 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. Some suggest taking a grinder to the extension area. If a barrel comes with the feed ramps could I take them off? To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. It is removeable with a special wrench and a barrel clamp/vise. Then you can get a regular rifle barrel for the upper with no ramps. M16s and M16-A1s run at 750 rounds per minute in full auto. 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. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Dec 17, 2020. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. You want them to match. The leading cause that leads to the development of the M4 feed ramp is the gas pressure from the carbine gas system that is increasing along with a high cyclic rate. 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. Your previous content has been restored. 3. 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. Full M4 feed ramps start on the upper and continue onto the barrel extension. Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. You will be able to leave a comment after signing in, AR15Armory.com Sorta. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. 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. However, they do have M4 feed-ramps which is not clone correct. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. He had more to say and added some more engineer and gun designer speak too. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. 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. Copyright 1996-2023 AR15.COM LLC. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. practical_man I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. 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. A shorter gas tube means reduced gas pressure, and we all know what happens when there isn't enough pressure to cycle the bolt carrier group properly. The M4 was the first (allegedy) carbine length gas system. Description. By Create an account to follow your favorite communities and start taking part in conversations. Absolutely nothing to do with casing diameter, or whatever other weird sht you guys imagine. By You wrote that much to make a point that should have taken about 100 words? The information provided here does not represent the views of Cheaper Than Dirt! Guess what? 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. 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. Recommend using a gunsmith this route too if you are not comfortable. 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. 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 a 723 build (w/ C7 upper) and a 727 build (A2 upper) that use 14.5" Colt M4 barrels. I like getting another Upper idea then you could end up with two rifles! If I can correct an issue before it's an issue that is preferred. The Bullet ~ Handguns, Rifles and Shotguns, http://thearguys.com/ar-facts/m4-feed-ramps/. I had seen these pix years ago and dismissed the idea of mix and match. Does anyone have a follow up that confirms or denies my claim? 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? 1 is a standard and the other for use with m4 feed ramp barrels. They provide a lower, wider, and smoother entry for any round of ammo, whether its necessary or not. "It will last 5k rounds instead of 4k. Notify me of follow-up comments by email. Just put it in and shoot it. All uppers are assembled cleaned and tested before shipping. Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. I would just make sure to order rifle upper with rifle barrel extension or M4 upper with M4 barrel extension. The extension is the part at the end of the barrel that fits inside the upper. The Fora platform includes forum software by XenForo. If it's happening regularly, check the magazines you are using for serviceability. Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . Featuring hand lapped 1/8 twist rate button rifling and M4 feed ramps barrel extensions, the 410 stainless barrel gives the shooter the best balance of weight and accuracy. I don't have much to add re: feed ramps, but. Looking For Bear Creek Arsenal Barrels Review? I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? 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. You cannot paste images directly. Please allow 5~10 days for assembly and testing before ship date. Should not be too hard. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. Please be respectful of others. The barrels also had to be modified. The difference between standard feed ramps and M4 ramps is easy to see. One new winner* is announced every week! What is an m4 feed ramp? check out the. Any use of this content without express written consent is prohibited. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. The Mission of Cheaper Than Dirt! VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Issues can arise when receivers and barrel extensions are mismatched. Is one better than the other? this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. I should have taken my own advice for once. You also repeated yourself. 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! 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. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. The closest brand new barrel you are likely to find is the Windham Weaponry 20 inch 1/7 twist chrome lined barrel. There's no downside to having M4 feedramps on your carbine, but they are not as necessary without full auto and when using followers that will not tilt (or in a 20 AR15). So, what is the difference between M4 feed ramps and regular ones? Ideally both. 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 .