Also, barrel life is relative. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. The last is using the best and right ammo for the job. What's the difference? An older-version (or A2-style) feed ramp is cut only on the barrel extension itself (top). They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! Then the manufacturer discontinued the barrel. So there's a lot more going on with rounds bouncing up and down in the mags etc. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. "It will last 5k rounds instead of 4k. The information provided here does not represent the views of Cheaper Than Dirt! Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . Polishing the edges of the chamber mouth to remove the edges of that chamfer will. 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. 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? However, they do have M4 feed-ramps which is not clone correct. In most cases the ramps only help during full auto mode while cycling at a high rate. 4. So, what is the difference between M4 feed ramps and regular ones? You cannot paste images directly. This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. Any use of this content without express written consent is prohibited. 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 can assure you that most mods that deviate from the original design aren't 100% reliable. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Do you have an AR barrel or feed ramp tip? A forum community dedicated to drag racing drivers and enthusiasts. In case My barrel is rifle ramp it won't be so bad after all. Married pretty well with my Seekins machined lower. I recommend putting any AR-platform firearm together with a matched M4 barrel extension and upper receiver set, just because you can. I replaced the M4 feed ramp barrel with a monolithic feed ramp barrel and no more problems. FFL Fax: 866-721-8691. 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. You also repeated yourself. 50 bucks one way or the other on the barrel ain't squat! So I called. 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. The difference between standard feed ramps and M4 ramps is easy to see. 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. Upload or insert images from URL. "C" stamp and CAGE code available. pictures would help. 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. This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. Edited April 27, 2014 by Mark Gale EDIT: Okay, I understand now! I read in Bravo company that there are 2 kinds of flat top upper. Notify me of follow-up comments by email. Create an account to follow your favorite communities and start taking part in conversations. Just because you can, doesn't mean you should. 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? Go back to writing school. Its also recommended you polish the ramps once youve achieved the appropriate angle. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. 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. Add 3% to the total cost for credit card purchases. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. Is one better than the other? All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. Press question mark to learn the rest of the keyboard shortcuts. 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 Forged 7075-T6 aluminum is harder than a bulls balls. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. are all barrels w/ m4 feed ramps?? Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. 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 best case is to have both an upper and barrel that have the feed ramps. 3. The tip of the cartridge rarely comes into contact with the upper receiver. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. I use it for hunting dogs only. colt A1E1 733 uppers didn't have extended carbine feedramps ? and add them to non-m4 barrels.? Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). ago KrinkyDink2 9 hr. Copyright 2016 - 2023 by AdventureFootstep.com. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Try this little exercise: 1. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. . I wouldn't be concerned at all with any wear after modifying an upper receiver. I can probably get the upper reciever first. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. Site towers are not "F" marked SPECS: Length- 14.5". aaargh.. that's the setup I hate to see. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? This is one time it's better to go a little too far than to leave an edge for the . Man, its crazy how many of yall have absolutely no idea why you do what you do. M4 ramps help in feeding in for carbine in full auto. M4 can better explain their benefit, although they help with more reliable feeding. *Must have a registered ARFCOM account to win. If a barrel comes with the feed ramps could I take them off? May 17, 2008 in The Armorer. Is getting it as part of the upper better? 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. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. Pasted as rich text. 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. 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). For the purposes of this chapter, we'll call the new one the M4, and the old one the AR. well.. it's kinda hard to get stuff in this part of the world. 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. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. Reliability is the main concern for me when I re-barrel this rifle. 2. Your link has been automatically embedded. It was in the last few issues of SAR. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. 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. 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. 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. This has been my concern with modifying the aluminum parts. The manufacturer said they had sold hundreds of barrels with out problems reported. Questions on how to install your new BA barrel? 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. It is milled out of 6061 T6. Copyright 1996-2023 AR15.COM LLC. Brevity matters. All uppers are assembled cleaned and tested before shipping. 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. JavaScript is disabled. DSA has fat top, Mueller, non feed ramp uppers for $40. Interesting reading. 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. 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! Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. Editors Note: This article was originally published in January of 2019. Thats why AR10s- And Scar heavies exist for. So, I had purchased a 458 upper. Thats true overall and good to keep in mind. 1 is a standard and the other for use with m4 feed ramp barrels. Either way is good and both types work great with semi auto only guns. M4 barrel to non M4 receiver is fine, but not the other way around. They provide a lower, wider, and smoother entry for any round of ammo, whether its necessary or not. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. But, as with anything else, this work can go too far. The parts are interchangeable. 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. Lol. I checked what I have now. Share it in the comments section. 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. The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. Sent back again. i have an extra brand new M4 barrel extension ramp to replace a rifle ramp. Caught a deal on a matched barrel and bolt. Does it make a big difference? I'm planning on replacing my forearm with a Larue 13.5. 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). Reddit and its partners use cookies and similar technologies to provide you with a better experience. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. Bullets tend to bump, snag, and stub on these guns. It's best to have M4 ramps on both the upper and barrel. Remember less is more, little by little. Seems M4 is all the rage these days. Looking For Bear Creek Arsenal Barrels Review? There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Amazing what happens in a thread over a simple question. Clear editor. 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 it was some flat top + 16" FSB barrel id just swap upper/barrel, but this is a little more challenging to do that with. They guide the bullet up and into the chamber. I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. It's best to use rifle/rifle combo or M4/M4. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. Display as a link instead, The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal. ago Costs about $40-50 to have the feed ramps reprofiled from what I can gather. M16's fed pretty well before the M4 feed ramps were introduced. What is the difference between Modern, Performance, and Premium Series Barrels? You absolutely do not want it the other way around however. A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. I've seen that pic, it is a good reference. Thread: Adding M4 feedramps to A1/C7 upper. You are using an out of date browser. 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. check out the. The extension is the part at the end of the barrel that fits inside the upper. It's an interesting question. - 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. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. The first reason is that they are, indeed, better. Damaged Ak front end Barrel in Trunnion with or without sight bases. The closest brand new barrel you are likely to find is the Windham Weaponry 20 inch 1/7 twist chrome lined barrel. 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. I just need a little guidance on this and I'm having trouble getting good results from Google. I notice that's a Gibbz (or Gibbz-type) upper. 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 . 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. I have looked and looked and looked. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. You want them to match. By 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. AR9 - Help diagnosing feeding issue. 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! 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. They were not intended to be super long range man killers. again, Thanks. I have a non ramped barrel in a ramped upper, feeds fine. Avoid Polishing Too Lightly Or Too Roughly This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. When you need to nail something you use a hammer not a wrench. April 23, 2014 in Rifle - Technical. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. I picked up a side charging upper from Sundevil last year. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. 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. 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. Ideally both. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? Powered by Invision Community. These units actually feature the NON-F-Marked (correct) front sight base. You will be able to leave a comment after signing in, AR15Armory.com A feed ramp is a basic feature of many breech loading cartridge firearm designs. The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. Theres a bit more to it than just polishing. is the m4 feedramp common in barrel extensions? All NFA rules apply. Our 6mm ARC barrel come standard with 1-7.5 Twist, M4 Feed Ramps and gas tube. 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 think your mistaking that with adding ramps to the receiver. Went back to the sellers website and found I was not the only one with problems. "A Bad Day At The Range Is Better Than A Great Day Working". I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces For a better experience, please enable JavaScript in your browser before proceeding. Any use of this content without express written consent is prohibited. Finding the proper upper receiver is your best option. Backing up a ton: The ramps on regular barrel extension are cut just to the edges, while the M4 feed ramps have deeper cuts in the M4-spec upper receiver. Paste as plain text instead, 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). can you buy feed ramps individually? To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. It is removeable with a special wrench and a barrel clamp/vise. 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 have the option of barrel type, thread, fluting, finish type and to add a match bolt. 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. The barrels also had to be modified. Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. practical_man So I'm working on my first build, and I'm a little confused. BrianEnos.com So, an M4 feed ramp includes the barrel extension and the upper. If your upper isn't showing signs of bullets rubbing on the aluminum under the barrel extension, you should be good with M4 ramps. Then you can get a regular rifle barrel for the upper with no ramps. M4 Feed ramps on barrel extensions are a solid example. Barrel customizations are also available. Modern Series Barrels. Feeds flawlessly. I've seen several places say you just need a 1/8" chainsaw sharpening bit and a Dremel to fix it. The Mission of Cheaper Than Dirt! You can post now and register later. The ramps on the regular rifle-type extension are cut just to the edge of the extension. We have four combinations here: I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. 5. 2. Metal cases ammunition such as Wolf through an M4 clone? 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). Jams and misfires. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. 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. The M4 was the first (allegedy) carbine length gas system.
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