Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? The extension is the part at the end of the barrel that fits inside the upper. CUTTING M4 RAMPS - YouTube practical_man The tip of the cartridge rarely comes into contact with the upper receiver. What is an m4 feed ramp? Read Now. Try this little exercise: 1. What's the difference? Edited April 27, 2014 by Mark Gale A4 Complete Upper Receiver. 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 I'm assuming that you only need the ramps from one or the other. Just put it in and shoot it. I like all my guns to be reliable. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! Ideally both. Looking For Bear Creek Arsenal Barrels Review? Any use of this content without express written consent is prohibited. I wouldn't be concerned at all with any wear after modifying an upper receiver. So, lets glide down these lines below to erase your misconceptions about them. Its a miracle! Any body need a anchor for a very small boat? Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. 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. Notify me of follow-up comments by email. 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. 11.5", SBN, 1:7, 5.56 NATO Barrel M4 Feed ramps on barrel extensions are a solid example. The first reason is that they are, indeed, better. Site towers are not "F" marked SPECS: Length- 14.5". The difference between standard feed ramps and M4 ramps is easy to see. So there's a lot more going on with rounds bouncing up and down in the mags etc. JavaScript is disabled. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. We have four combinations here: The ramps on the regular rifle-type extension are cut just to the edge of the extension. Do you need an M4 feed ramp on your AR? Here is some info. I'd rather just pay the gunsmith to make it work than hunt down another barrel/upper if possible. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. Standard vs M4 Feed Ramps, what's the difference #1056 Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of . You want them to match. Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . what I fear the most is having an m4 ramp upper and then getting a barrel with a rifle ramp. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Most work performed while-you-wait, evening and saturday appointments available. Reddit and its partners use cookies and similar technologies to provide you with a better experience. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Feed ramps being m4 or. Thank you for answering the question do well. Display as a link instead, This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. April 23, 2014 in Rifle - Technical. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. A closer look at uppers and barrel extensions. 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. 4. 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. Create an account to follow your favorite communities and start taking part in conversations. One new winner* is announced every week! I think your mistaking that with adding ramps to the receiver. Powered by Invision Community, M4-style barrel extension with Rifle-type upper. The M-16/M4 are great weapons. Is one better than the other? Thanks for explaining the feed ramp topic in a couple of different ways. 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. Press J to jump to the feed. Also, barrel life is relative. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. In military situations, it is advantageous for rifles to function with damaged, worn, or less than ideally serviceable magazines. Brevity matters. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 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. i have the rifle barrel. I too built a .458 SOCOM carbine . M4 ramps help in feeding in for carbine in full auto. 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 Insert the barrel and sharpie the cut area, then use the right bit on a dremel. This is one time it's better to go a little too far than to leave an edge for the . I picked up a side charging upper from Sundevil last year. Additionally, in this increasingly specialized world of AR-15 parts that we live in, there are proprietary feed ramp cuts used for some alternate cartridges, such as .458 SOCOM. Only took a few minutes. All comments are held for moderation and will appear after approval. Only took a few minutes. M4 barrel to non M4 receiver is fine, but not the other way around. For a better experience, please enable JavaScript in your browser before proceeding. Does it make a big difference? There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. 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. Issues can arise when receivers and barrel extensions are mismatched. Powered by Invision Community. The barrel Throat is the second most critical component after angles and should be polished with utmost care. So, I had purchased a 458 upper. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. Change the angle so that the ramp ends at the exact same point. Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. 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. 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 A forum community dedicated to drag racing drivers and enthusiasts. Avoid Polishing Too Lightly Or Too Roughly Surplus Colt 14.5 M4 SOCOM Carbine Barrel 1/7 Twist BCM 16" M4 Carbine Upper Receiver Group | BravoCompanyUSA can you buy feed ramps individually? To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. Editors Note: This article was originally published in January of 2019. 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. Little polish. "C" stamp and CAGE code available. Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals 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. 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. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. Backing up a ton: Any and all AR-15 barrel extensions have feed ramps. LanceRiley, By check out the. This has been my concern with modifying the aluminum parts. The rifle-platform M16s dont use them. All Rights Reserved. "A Bad Day At The Range Is Better Than A Great Day Working". 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. Id just get one for that barrel and find a barrel with m4 extension for the upper you already have. M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. 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). Ar15 Upper receivers A2 and Colt A1, M4 and - Northwest Firearms Check often for fit. My alternative plan is to do exactly as you describe. After two months of back and forth, cleaned up the feed ramps. SKU: BCM-URG-M4-16 Features: M4 Feed Ramp Barrel Extension Caliber: 5.56 NATO Barrel Length: 16in Barrel Style: Standard Handguard: None BCM M4 Handguards (Double Heat Shield) - Black + $15.00 PKMR (Polymer KeyMod Rail) Carbine Length - Black + $24.95 PKMR (Polymer KeyMod Rail) Carbine Length - Flat Dark Earth + $24.95 Stock Status: Out of stock Good call. 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. Ready to drop onto a complete lower receiver. 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. So, what is the difference between M4 feed ramps and regular ones? M4 Feedramps - AR-15 Pro Some argue that, factually, its a step to enable a smoother feeding. 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.) . The mil actually only specs M4 feed ramps for use in its M4s. Cutting M4 feed ramps - Calguns.net The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal. The Differences Between an M4 and an AR15 - Music Raiser 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. However Ive built numerous ar15 and lr308 rifles and pistols. Either way is good and both types work great with semi auto only guns. 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). I had seen these pix years ago and dismissed the idea of mix and match. 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. 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. Whether they materialize or not depends on the direction of the mismatch. It was in the last few issues of SAR. You are using an out of date browser. Figuring Out Feed Ramps | Feed Ramp Tips | The Shooter's Log You have a rifle barrel. can the barrel extension be bought individualy? M4 feed ramps. M4 feed ramps will extend the barrel extension and the upper receiver. Forged 7075-T6 aluminum is harder than a bulls balls. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. 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. Sorta. Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. M4 Barrel Extension (M4 Feedramps) $22.95 (4 reviews) SKU: Barrel-Extension-M4 Stock Status: Quantity: Add to Wish List Description For your AR15, M16, M4. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I'm a machinist in the aerospace industry and lucky enough to have. If you don't clean it but demand 3/4MOA you might get 1,500. I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. Add M4 cuts to Barrel Ext $15.00 We can modify your rifle extension to match the M4 cuts in an upper receiver. What Are M4 Feed Ramps and What Is The Benefit Of It? - Adventure Footstep Do you have an AR barrel or feed ramp tip? Bullets tend to bump, snag, and stub on these guns. 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. 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. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. 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 Copyright 1996-2023 AR15.COM LLC. hey bro nice to see you here!!! M4 Barrel Extension (M4 Feedramps) - Bravo Company USA Your email address will not be published. If I can correct an issue before it's an issue that is preferred. Its easier to add feed ramps to the receiver not so easy to add them to the barrel extension. 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. 30 cal. Any use of this content without express written consent is prohibited. 3. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. Feed ramp - Wikipedia Not all mil-spec features advertised on the product information are the real mil-specs. 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. Semi autos run slower than full autos. 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. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. Feels like a silly question now that it makes sense. I'll probably build a pistol out of this one. Looking to spend $180-250 (depending on condition, forge mark and if a rear sight is included or not.) It is milled out of 6061 T6. 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. 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. [WTB] Black A1 carry handle upper NON-m4 feed ramp $200 I use it for hunting dogs only. JavaScript is disabled. Remember less is more, little by little. 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. BCM 14.5" MK2 Upper (Standard) w/ 13" MLOK Handguard - FDE 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). You absolutely do not want it the other way around however. On the other hand, I wouldn't consider them as a deal breaker, and they would not pass up a good deal with an upper only because it did not have them - the M4 feed ramps. I have seen it done many, MANY times and if done right, it works/functions 100% without issue. 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. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. Copyright 2016 - 2023 by AdventureFootstep.com. That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. The best case is to have both an upper and barrel that have the feed ramps. The barrel extension and the receiver both have to have the cuts. Modern Series Barrels. $101.95. For new construction barrels only. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt.