The ramps are in the barrel extension. I got my help from this thread, and thank you again to ORD. You have a rifle barrel. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Ready to drop onto a complete lower receiver. . Whether they materialize or not depends on the direction of the mismatch. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. 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. aaargh.. that's the setup I hate to see. The rifle-platform M16s dont use them. Don't forget read more information about it here! 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. My alternative plan is to do exactly as you describe. AR-15 Barrel Extension Question - Sniper's Hide Forum I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. I don't have much to add re: feed ramps, but. He had more to say and added some more engineer and gun designer speak too. i have an extra brand new M4 barrel extension ramp to replace a rifle ramp. Upload or insert images from URL. No feed ramps. If you have a m4 ramped upper but not barrel you can cause problems as there's a lip of steel barrel extension in the way that can cause feeding problems. Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . 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. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Standard vs M4 Feed Ramps, what's the difference #1056 I would just make sure to order rifle upper with rifle barrel extension or M4 upper with M4 barrel extension. Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks. I will check with compass lake. So, what is the difference between M4 feed ramps and regular ones? I can probably get the upper reciever first. Here you can see an upper with "rifle" feedramps. 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. 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). Which Model Colt 1911 is For Me? I found the article very informative. 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 . Would not feed to save its life! This is a big tip, by the way, for pistol-caliber ARs. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. . 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 . You can post now and register later. The barrels also had to be modified. Some argue that, factually, its a step to enable a smoother feeding. Display as a link instead, For use by barrel manufacturers. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Pasted as rich text. You can put a M4 barrel and non-M4 receiver together, but you can't mismatch them the other way. Press question mark to learn the rest of the keyboard shortcuts. All NFA rules apply. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. I too built a .458 SOCOM carbine . The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation. Add 3% to the total cost for credit card purchases. We have four combinations here: Only took a few minutes. This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. Then you can get a regular rifle barrel for the upper with no ramps. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The last is using the best and right ammo for the job. Reddit and its partners use cookies and similar technologies to provide you with a better experience. DSA has fat top, Mueller, non feed ramp uppers for $40. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 308 m5 using m4 feed ramps, which I belive are for the smaller round like. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. CUTTING M4 RAMPS - YouTube If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. ago KrinkyDink2 9 hr. 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. 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. PRI MK 12 Mod H 16" 223/5.56 Upper w/ 1-7 twist [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. AAC and anybody else that has any reasonable expectation of quality and reliability use an M4 feed ramp. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. The tip of the cartridge rarely comes into contact with the upper receiver. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. . It was in the last few issues of SAR. It has 2 ramps cut into the receiver to help the rounds feed into the chamber. which is basicallly an m16a1 cut down. It's an interesting question. Share it in the comments section. The manufacturer said they had sold hundreds of barrels with out problems reported. Making a non M4 feed ramp barrel work in an M4 feed ramp upper. Try this little exercise: 1. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. In short, if you have a Dremmel you can do it yourself. I checked what I have now. 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. Get The Best Trigger Pull Gauges To Make Every Shot Count. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. AR-15 feed ramp issues - Rifle - Technical - Brian Enos's Forums 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. I use it for hunting dogs only. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. Sorta. 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. However, I have seen more than a few basement gunsmith hackjobs using a dremel, some Jack Daniels/liquid courage, and an unsteady hand that have made a total, unrepairable mess of the job. I'm planning on replacing my forearm with a Larue 13.5. Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals PSA PA-15 16"M4 Phosphate 5.56 NATO 1/7 Classic AR-15 Rifle with 13.5"M April 23, 2014 in Rifle - Technical. I picked up a side charging upper from Sundevil last year. 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. Little polish. 2. Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. Went back to the sellers website and found I was not the only one with problems. Full M4 feed ramps are on both the upper and barrel extension. pictures would help. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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? Thanks! The mil actually only specs M4 feed ramps for use in its M4s. I can assure you that most mods that deviate from the original design aren't 100% reliable. Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. We want you, our readers, to be able to make informed decisions. However, an M4 barrel extension is dished more so the feed ramps could extend downward, and then an area within the upper is shaped to match. 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. 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! 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. Any body need a anchor for a very small boat? can the barrel extension be bought individualy? Im an old vet, now retired and looking to build some ARs as a hobby to keep me doing something that I will enjoy. Feed ramps on barrel extensions are a good example. Semi autos run slower than full autos. M4 Feedramps - AR-15 Pro 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). Read Now. 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. With the increased use of larger-diameter cased cartridges, the M4 feed ramps are proving their values when using them in those cartridges. In general, all you need to understand is that the M4 feed ramps include the barrel extension and upper receiver. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. My factory JP CTR-02 has the appearance of the bottom right picture in the post above, M4 barrel extension in a rifle receiver, and there is not a mark on the aluminum under the barrel extension. M4 feed ramp barrel in a non M4 ramp upper - AR15.COM CARBON-15 Stripped Lower Receiver If you consider this article useful, share it with anyone in need! Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. "It will last 5k rounds instead of 4k. So, lets glide down these lines below to erase your misconceptions about them. I had seen these pix years ago and dismissed the idea of mix and match. I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. 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. BCM 14.5" MK2 Upper (Standard) w/ 13" MLOK Handguard - FDE #2. is the m4 feedramp common in barrel extensions? It gives a longer ramp that is less steep into the chamber. upper recievers and barrels are hard to comeby. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . Previous. Go back to writing school. Please allow 5~10 days for assembly and testing before ship date. 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. Rifles, Uppers, Lowers, Barrels, and more, [ARCHIVED THREAD] - Rifle vs m4 feed ramps, http://i135.photobucket.com/albums/q125/PursuitSS/Postings%20photos/c0d26170b75c3e6f9ea65a7d0862247e.jpg. 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. 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. Our 6mm ARC barrel come standard with 1-7.5 Twist, M4 Feed Ramps and gas tube. 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). 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. I have looked and looked and looked. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. 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. Issues can arise when receivers and barrel extensions are mismatched. No Feed Ramps on upper? - General Discussion - 308AR.com Community AR15 20 inch Upper Receiver Group (SS) w/ Handguard | BCM And that is the important thing! 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). 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. Adding M4 feedramps to A1/C7 upper - M4Carbine.net 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. FN AR-15 5.56X45mm Nato 14.70" M4 Profile Barrel Carbine Length Gas *Must have a registered ARFCOM account to win. 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 like all my guns to be reliable. FN AR-15 5.56 NATO 20" Hammer Forged Barrel - Black Ar15 Upper receivers A2 and Colt A1, M4 and - Northwest Firearms Powered by Invision Community, M4-style barrel extension with Rifle-type upper. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. 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. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Either way is good and both types work great with semi auto only guns. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. Notify me of follow-up comments by email. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. I prefer them. AR-15 Feed Ramp Problems - School of the American Rifle Caught a deal on a matched barrel and bolt. The barrel extension and the receiver both have to have the cuts. Anodized red parts. Damaged Ak front end Barrel in Trunnion with or without sight bases. Change the angle so that the ramp ends at the exact same point. It's going to a gunsmith to be shortened and rethreaded anyways, can they just grind/polish the feed ramps to match or is it more involved than that? 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. pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. There is no way to make a carbine barrel extension out of a rifle barrel extension, period, full stop. AR9 - Help diagnosing feeding issue. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. M16s and M16-A1s run at 750 rounds per minute in full auto. 's blog. Barrel customizations are also available. Not saying a really good gunsmith cant do it, just that theres a bit of an involved process. 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. 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. 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. I just need a little guidance on this and I'm having trouble getting good results from Google. Thread: Adding M4 feedramps to A1/C7 upper. 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. Both. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Amazing what happens in a thread over a simple question. However, they do have M4 feed-ramps which is not clone correct. Feeds flawlessly. But, as with anything else, this work can go too far. Copyright 1996-2023 AR15.COM LLC. - 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. The photo shows the dents and the bolt lugs line up perfectly. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. You also repeated yourself. Clear editor. I have a non ramped barrel in a ramped upper, feeds fine. 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. what does it do?? This 20" BCM barrel is machined from SS410 stainless steel. By Yamil Sued August 6, 2021. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. 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. Gas block area is .750 diameter. M4 barrel to non M4 receiver is fine, but not the other way around. Thats an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. 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! You absolutely do not want it the other way around however. Good call. Metal cases ammunition such as Wolf through an M4 clone? 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. I suggest you get a rifle receiver. Description. 1 is a standard and the other for use with m4 feed ramp barrels. "A Bad Day At The Range Is Better Than A Great Day Working". I like getting another Upper idea then you could end up with two rifles! 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. Jams and misfires. All uppers are assembled cleaned and tested before shipping. I have done the same, protect the Barrel extension with a layer of electrical tape and carefully file or Dremel the ramps into the aluminum receiver. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Your previous content has been restored. How long your barrel "lasts" depends on what your accuracy threshold is before you decide it is too bad to keep using. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. I should have taken my own advice for once. Its not a big deal but still an important thing to remember and understand. AR9 - Help diagnosing feeding issue - Calguns.net I recommend putting any AR-platform firearm together with a matched M4 barrel extension and upper receiver set, just because you can. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. which is bad combo. Press question mark to learn the rest of the keyboard shortcuts. Also, barrel life is relative. It is removeable with a special wrench and a barrel clamp/vise. Gun smith said , not head spaced properly. The difference between standard feed ramps and M4 ramps is easy to see. By I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. and add them to non-m4 barrels.? check out the. Barrel FAQs | Ballistic Advantage There is a picture of the various options, hopefully another poster can link them. Only took a few minutes. I notice that's a Gibbz (or Gibbz-type) upper. Looking For Bear Creek Arsenal Barrels Review? 3. All comments are held for moderation and will appear after approval. 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. Does NOT include pin The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. The M-16/M4 are great weapons. My experience with ARs is all A-1s. m4 feed ramps - The Armorer - AR15Armory.com Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. Proper maintenance and lubrication. Does it make a big difference? M4 Feed ramps on barrel extensions are a solid example. DoubleStar M4 clone opinions | Survivalist Forum They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched.

For Rent By Owner Altamonte Springs, Fl, Serbian Royal Family Net Worth, Articles A