M4 feed ramp barrel in a non M4 ramp upper - AR15.COM Feed ramps on barrel extensions are a good example. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. There is no way to make a carbine barrel extension out of a rifle barrel extension, period, full stop. M4 M-4 Feed Ramp Jam with 55 gr grain Bullets, Solution, Fix, AR15 AR-15 Stuck Cartridge iowaunemployment 21K views 10 years ago Comparing AR15 barrels -Faxon vs. Bear Creek arsenal-. Display as a link instead, Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I'm assuming that you only need the ramps from one or the other. However Ive built numerous ar15 and lr308 rifles and pistols. Any use of this content without express written consent is prohibited. 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. 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! I have looked and looked and looked. 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. The manufacturer said they had sold hundreds of barrels with out problems reported. well.. it's kinda hard to get stuff in this part of the world. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. Not all mil-spec features advertised on the product information are the real mil-specs. You have the option of barrel type, thread, fluting, finish type and to add a match bolt. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. Notice how the ramp starts on the barrel extension and not in the receiver. 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. 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! $101.95. 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? Only took a few minutes. 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. Thread: Adding M4 feedramps to A1/C7 upper. All uppers are assembled cleaned and tested before shipping. 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. For a better experience, please enable JavaScript in your browser before proceeding. 14.5" M4 SOCOM Barrel Assembly with Sight Tower - Brownells 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 If you have an account, sign in now to post with your account. They guide the bullet up and into the chamber. 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. I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. I picked up a side charging upper from Sundevil last year. Other selections are available for upper, bolt and carrier, charging handle, handguards, flash hiders, and gas blocks. For use by barrel manufacturers. 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? Semi autos run slower than full autos. Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. In case My barrel is rifle ramp it won't be so bad after all. P2A PATRIOT 22" 223 Wylde 1/7 Rifle Length Melonite Fluted Heavy Bull The barrel is supposed to have the M4 feed ramps. Clear editor. You wrote that much to make a point that should have taken about 100 words? Ideally both. Add 3% to the total cost for credit card purchases. But, as with anything else, this work can go too far. Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. Does anyone have a follow up that confirms or denies my claim? Looking to spend $180-250 (depending on condition, forge mark and if a rear sight is included or not.) 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? "It will last 5k rounds instead of 4k. Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. The barrels also had to be modified. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. ago KrinkyDink2 9 hr. To measure just where the round makes impact on the feed ramps, I did not use any sort of micrometer to measure. 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. I'm a machinist in the aerospace industry and lucky enough to have. I'll probably build a pistol out of this one. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces What Are M4 Feed Ramps and What Is The Benefit Of It? - Adventure Footstep practical_man BUT, I DO NOT TRUST MY LIFE TO THAT WEAPON. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. 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. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. 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. All Rights Reserved. You are using an out of date browser. "A Bad Day At The Range Is Better Than A Great Day Working". Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. CARBON-15 Stripped Lower Receiver The ramps are in the barrel extension. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. 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. Just put it in and shoot it. Check often for fit. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. Home Firearms Figuring Out Feed Ramps. I wont buy a barrel that isnt a wylde 223 556 but Im only now noticing. I checked what I have now. Sent back again. Im an old vet, now retired and looking to build some ARs as a hobby to keep me doing something that I will enjoy. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. 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. Konza Defender M-LOK 5.56 16" Rifle - $399.99 | gun.deals Making a non M4 feed ramp barrel work in an M4 feed ramp upper. Press J to jump to the feed. So the engineers lowered the feed rampa into the receiver. so im thinking I might as well just get the unramp upper. 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. For new construction barrels only. 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. A closer look at uppers and barrel extensions. again, Thanks. 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. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Avoid Polishing Too Lightly Or Too Roughly It's an interesting question. Your previous content has been restored. 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 . I like getting another Upper idea then you could end up with two rifles! Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. By Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. It's best to use rifle/rifle combo or M4/M4. M4 Feed ramps on barrel extensions are a solid example. M4 16", SBN, 1:7, 5.56 NATO Barrel Specifications: - Caliber: 5.56 NATO (.223 REM) - Gas Tube: Car Add to Cart. Change the angle so that the ramp ends at the exact same point. 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. Its also recommended you polish the ramps once youve achieved the appropriate angle. Required fields are marked *. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. I should have taken my own advice for once. 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. Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). 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. Does NOT include pin /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. Rifles, Uppers, Lowers, Barrels, and more, [ARCHIVED THREAD] - Rifle vs m4 feed ramps, http://i135.photobucket.com/albums/q125/PursuitSS/Postings%20photos/c0d26170b75c3e6f9ea65a7d0862247e.jpg. So I'm working on my first build, and I'm a little confused. Thanks. LanceRiley, Guess what? . Lol. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Factory said its fine . hey bro nice to see you 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. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. I prefer them. With the increased use of larger-diameter cased cartridges, the M4 feed ramps are proving their values when using them in those cartridges. and add them to non-m4 barrels.? - 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. M4 can better explain their benefit, although they help with more reliable feeding. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. Rifle vs m4 feed ramps - AR15.COM 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 . 5. this is the barrel designed and profiled for the Mark 12 Mod 0 uppers and rifles. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. So, lets glide down these lines below to erase your misconceptions about them. The barrel extension and the receiver both have to have the cuts. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. Recommend using a gunsmith this route too if you are not comfortable. All comments are held for moderation and will appear after approval. I've seen that pic, it is a good reference. Don't ever put non M4 ramped barrel on a M4 ramped upper receiver. For a better experience, please enable JavaScript in your browser before proceeding. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. M4A1s run at 950 rounds per minute in full auto and even 950+ rounds per minute as the gas port erodes open bigger and bigger with wear and allows them to run even faster and much more violent. Go back to writing school. 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. 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. 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. AR15 Feed Ramp Cut & Polish Kit - School of the American Rifle Does it make a big difference? The Mission of Cheaper Than Dirt! A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. 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. Watch a video about our Modern Series AR barrel: In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. They were not intended to be super long range man killers. 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. 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. 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. The rifle-platform M16s dont use them. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. Don't forget read more information about it here! 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. 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. So, an M4 feed ramp includes the barrel extension and the upper. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. Notify me of follow-up comments by email. CUTTING M4 RAMPS - YouTube 's blog. So, an M4 feed ramp includes the barrel extension and the upper. 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. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process.
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