Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. Either way is good and both types work great with semi auto only guns. You can put a M4 barrel and non-M4 receiver together, but you can't mismatch them the other way. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. 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. All Rights Reserved. I found the article very informative. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. 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 4. Full M4 feed ramps start on the upper and continue onto the barrel extension. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. When carrying out feed ramp polishing, it is crucial to prioritize the frame's angles, which is a critical part of the feed ramp. i have the rifle barrel. EDIT: Okay, I understand now! And that is the important thing! *Must have a registered ARFCOM account to win. 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. Married pretty well with my Seekins machined lower. 5. 3. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. For this test, I used a Colt upper with M4 feed ramps and a SOCOM heavy 14.5 barrel, just like what is used in the military. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Whether they materialize or not depends on the direction of the mismatch. Don't forget read more information about it here! upper recievers and barrels are hard to comeby. Go back to writing school. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces You must log in or register to reply here. 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 . For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. You wrote that much to make a point that should have taken about 100 words? Here you can see an upper with "rifle" feedramps. The Fora platform includes forum software by XenForo. All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. Read Now. check out the. 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. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About 2. So there's a lot more going on with rounds bouncing up and down in the mags etc. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. If this is your first visit, be sure to Watch a video about our Modern Series AR barrel: When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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). 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. This is one time it's better to go a little too far than to leave an edge for the . 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. ago KrinkyDink2 9 hr. Seems M4 is all the rage these days. 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. Some argue that, factually, its a step to enable a smoother feeding. I have a non ramped barrel in a ramped upper, feeds fine. 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. Finding the proper upper receiver is your best option. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I will check with compass lake. It is milled out of 6061 T6. It's best to use rifle/rifle combo or M4/M4. 50 bucks one way or the other on the barrel ain't squat! For a better experience, please enable JavaScript in your browser before proceeding. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. First of Im not a gunsmith or firearms professional. 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. Thanks! [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. For a better experience, please enable JavaScript in your browser before proceeding. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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. I can assure you that most mods that deviate from the original design aren't 100% reliable. M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. 3. There is no way to make a carbine barrel extension out of a rifle barrel extension, period, full stop. which is basicallly an m16a1 cut down. If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. However Ive built numerous ar15 and lr308 rifles and pistols. If you have an account, sign in now to post with your account. 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. The ramps on the regular rifle-type extension are cut just to the edge of the extension. 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). Single Action and Double Action Which One Is Better For You? Experts advise on 31 degrees+30 minus-zip. 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 These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. My experience with ARs is all A-1s. I have looked and looked and looked. Also, barrel life is relative. Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. 308 m5 using m4 feed ramps, which I belive are for the smaller round like. BrianEnos.com The tip of the cartridge rarely comes into contact with the upper receiver. Its also recommended you polish the ramps once youve achieved the appropriate angle. Can I use a barrel with M4 feed ramps with an upper that isnt M4 matched? 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. Which Model Colt 1911 is For Me? 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! Powered by Invision Community, M4-style barrel extension with Rifle-type upper. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Feels like a silly question now that it makes sense. 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. It may not display this or other websites correctly. So I'm working on my first build, and I'm a little confused. Full M4 feed ramps are on both the upper and barrel extension. For use by barrel manufacturers. Notice how the ramp starts on the barrel extension and not in the receiver. 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. M4 feed ramps will extend the barrel extension and the upper receiver. Copyright 2016 - 2023 by AdventureFootstep.com. . Feed ramps being m4 or. 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. can the barrel extension be bought individualy? The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). I've seen several places say you just need a 1/8" chainsaw sharpening bit and a Dremel to fix it. I would just make sure to order rifle upper with rifle barrel extension or M4 upper with M4 barrel extension. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. Gas block area is .750 diameter. Do you have an AR barrel or feed ramp tip? For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. Home Firearms Figuring Out Feed Ramps. In short, if you have a Dremmel you can do it yourself. 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. Theres a bit more to it than just polishing. There is a picture of the various options, hopefully another poster can link them. I wouldn't be concerned at all with any wear after modifying an upper receiver. Factory said its fine . 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. this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. 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 By which is bad combo. If your upper isn't showing signs of bullets rubbing on the aluminum under the barrel extension, you should be good with M4 ramps. can you buy feed ramps individually? Does it make a big difference? Then the manufacturer discontinued the barrel. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. well.. it's kinda hard to get stuff in this part of the world. Try this little exercise: 1. 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. They provide a lower, wider, and smoother entry for any round of ammo, whether its necessary or not. I'm assuming that you only need the ramps from one or the other. Any body need a anchor for a very small boat? As they are becoming more and more a standard, and certainly do not do any harm to us. I can still use the combination. 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. The extension is the part at the end of the barrel that fits inside the upper. You need to match up barrels to receivers for optimum performance. The rifle-platform M16s dont use them. They are better! Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Questions on how to install your new BA barrel? Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Use this M4 Barrel extention with M4 feedramps. CARBON-15 Stripped Lower Receiver Notify me of follow-up comments by email. Hasn't misfed yet, through initial break in up through 1k rounds, and that's mag length ammo. 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. 30 cal. 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. Your email address will not be published. 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. 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. Mil-spec is good for the masses, and if you want the job done it is a great start. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! Forged 7075-T6 aluminum is harder than a bulls balls. Ready to drop onto a complete lower receiver. #2. My alternative plan is to do exactly as you describe. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. I was planning on using a Daniel Defense 14.5 pencil barrel, because like the C8 they are CHF, lightweight profile, and .750 at the FSB (And also because quality carbine pencil barrels with .625 gas blocks seem to be in short supplyor else I'd just build a 723 clone.) . While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. A4 Complete Upper Receiver. AR9 - Help diagnosing feeding issue. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. If a barrel comes with the feed ramps could I take them off? and add them to non-m4 barrels.? Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. We have four combinations here: But, as with anything else, this work can go too far. I suggest you get a rifle receiver. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . In most cases the ramps only help during full auto mode while cycling at a high rate. All comments are held for moderation and will appear after approval. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. Thats an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. 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. This gave it a longer point for the magazine to allow the rounds to come out of the magazine and feed into the chamber. You can modify the upper, but bear in mind that the un-anodized aluminum surface will be very soft and prone to wear if your particular bullet hits it frequently. JavaScript is disabled. Dec 17, 2020. A forum community dedicated to drag racing drivers and enthusiasts. Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. M4 barrel to non M4 receiver is fine, but not the other way around. Looking to spend $180-250 (depending on condition, forge mark and if a rear sight is included or not.) Get The Best Trigger Pull Gauges To Make Every Shot Count. DSA has fat top, Mueller, non feed ramp uppers for $40. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. This 20" BCM barrel is machined from SS410 stainless steel. The A2's are pretty reliable guns, but trashed mags can cause them to have malfunctions also. colt A1E1 733 uppers didn't have extended carbine feedramps ? 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? This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. 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. Now, theres nothing wrong at all with a little polish on any and all feed ramps, which can not only be done fairly easily, it can be successfully done by most at home. Feed ramps on barrel extensions are a good example. . I like getting another Upper idea then you could end up with two rifles! Reddit and its partners use cookies and similar technologies to provide you with a better experience. The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal. Thanks for explaining the feed ramp topic in a couple of different ways. Modern Series Barrels. By 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. I picked up a side charging upper from Sundevil last year. Pasted as rich text. I use it for hunting dogs only. 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). The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. 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. Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of . I don't have much to add re: feed ramps, but. 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. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. Sent back again. For the purposes of this chapter, we'll call the new one the M4, and the old one the AR. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. An older-version (or A2-style) feed ramp is cut only on the barrel extension itself (top). "A Bad Day At The Range Is Better Than A Great Day Working". Required fields are marked *. May 17, 2008 in The Armorer. Both. 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. Display as a link instead, I'll probably build a pistol out of this one. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. Metal cases ammunition such as Wolf through an M4 clone? Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. 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. Would not feed to save its life!
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