Get The Best Trigger Pull Gauges To Make Every Shot Count. Read Now. Display as a link instead, Your email address will not be published. M4 feed ramps are not an original design, they were designed for the M4 In fact, the . 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. The ramps are in the barrel extension. Inadequate knowledge about these feed ramps can lead to lots of problems with barrels because they are essential parts to guide the bullet up and into the chamber. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. I can still use the combination. . It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. can the barrel extension be bought individualy? I checked what I have now. Previous. I would just make sure to order rifle upper with rifle barrel extension or M4 upper with M4 barrel extension. So there's a lot more going on with rounds bouncing up and down in the mags etc. The barrel is supposed to have the M4 feed ramps. Seems M4 is all the rage these days. 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. Full M4 feed ramps start on the upper and continue onto the barrel extension. [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp 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. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. CARBON-15 Stripped Lower Receiver 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. Modern Series Barrels. You are using an out of date browser. If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. M4 feed ramps. Here you can see an upper with "rifle" feedramps. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels. 3. Which Model Colt 1911 is For Me? Create an account to follow your favorite communities and start taking part in conversations. That is what I tell people when they try to convince me that they need a stainless barrel instead of chrome-moly. It has 2 ramps cut into the receiver to help the rounds feed into the chamber. This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. 5. Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? Reddit and its partners use cookies and similar technologies to provide you with a better experience. BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. hey bro nice to see you here!!! 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. The Mission of Cheaper Than Dirt! A couple of times I ended up with the OK set up from the picture above. Seems counter intuitive to recommend an M4 cut upper, especially if the barrel Im looking at has the rifle feed ramp (not M4 cut). 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. i have the rifle barrel. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. In this episode of Gun Stock Reviews, we look at the difference between M4 Ramps and the old standard ramps of the past. Its not a big deal but still an important thing to remember and understand. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? 's blog. so im thinking I might as well just get the unramp upper. For new construction barrels only. 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 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. Is getting it as part of the upper better? Copyright 1996-2023 AR15.COM LLC. 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. Remember less is more, little by little. The first reason is that they are, indeed, better. 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 . I'd get jams from bullets hitting the back of the upper so I took a small round file and made the M4 ramps in the upper. Insert the barrel and sharpie the cut area, then use the right bit on a dremel. can you buy feed ramps individually? Powered by Invision Community, M4-style barrel extension with Rifle-type upper. 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. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. 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. Feeds flawlessly. FFL Fax: 866-721-8691. Earlfillmore 13 hr. 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 built the upper using a Mega upper with a Compass Lake 18" barrel. One of the AR15 engineers under Gene Stoner pretty much said that the M4 isn't a good platform, especially once the gas port erodes a bit. Caught a deal on a matched barrel and bolt. On AR9's, I understand the distance between the Mag Follower and the Feed Ramp is a known complication in the design. You want them to match. It's best to use rifle/rifle combo or M4/M4. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. *Must have a registered ARFCOM account to win. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. You CAN modify a rifle/A2 barrel extension to an M4 style extension, but it isn't always the best way to go unless you just have to do it. The photo shows the dents and the bolt lugs line up perfectly. Well, over the course of 5,000 rounds at .40 a round, you spent two grand on ammo. AAC and anybody else that has any reasonable expectation of quality and reliability use an M4 feed ramp. Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. 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. 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. I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of . Then you can get a regular rifle barrel for the upper with no ramps. . You have a rifle 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. 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. BrianEnos.com You cannot paste images directly. I can probably get the upper reciever first. As they are becoming more and more a standard, and certainly do not do any harm to us. If you ever have an issue, then look at getting a correct barrel for the upper. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. However Ive built numerous ar15 and lr308 rifles and pistols. I use it for hunting dogs only. Reliability is the main concern for me when I re-barrel this rifle. 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 Pasted as rich text. Please be respectful of others. 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 Regular feed ramps are cuts into the barrel extension only, which allows guiding the round into the chamber during loading, making them a fundamental feature of many breech-loading firearm designs. Looking For Bear Creek Arsenal Barrels Review? 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.) . Bullets tend to bump, snag, and stub on these guns. 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).