You must log in or register to reply here. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. 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. "It will last 5k rounds instead of 4k. I cant advise on that one folks. - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! Press J to jump to the feed. 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. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. 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.
Metal cases ammunition such as Wolf through an M4 clone? 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. check out the. They . The dimensions are different between the two, so theyd have to change some things to the feed ramps dimensions. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. You will be able to leave a comment after signing in, AR15Armory.com My factory JP CTR-02 has the appearance of the bottom right picture in the post above, M4 barrel extension in a rifle receiver, and there is not a mark on the aluminum under the barrel extension. Please allow 5~10 days for assembly and testing before ship date. DSA has fat top, Mueller, non feed ramp uppers for $40. I'll probably build a pistol out of this one. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. aaargh.. that's the setup I hate to see.
How to Clone the M16A2 Rifle - The New Rifleman colt A1E1 733 uppers didn't have extended carbine feedramps ? However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. Thanks for explaining the feed ramp topic in a couple of different ways. *Must have a registered ARFCOM account to win. 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 The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. So I called. They are better! M4 feed ramps are not an original design, they were designed for the M4 In fact, the . "C" stamp and CAGE code available. again, Thanks. A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. For the purposes of this chapter, we'll call the new one the M4, and the old one the AR. I've seen that pic, it is a good reference. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. He had more to say and added some more engineer and gun designer speak too. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. Either way is good and both types work great with semi auto only guns. what does it do?? Rifles, Uppers, Lowers, Barrels, and more, [ARCHIVED THREAD] - Rifle vs m4 feed ramps, http://i135.photobucket.com/albums/q125/PursuitSS/Postings%20photos/c0d26170b75c3e6f9ea65a7d0862247e.jpg. The only other time it seems to help is if the mag is feeding the rounds with the bullet slightly angled lower than normal. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. The barrel Throat is the second most critical component after angles and should be polished with utmost care. Does NOT include pin hey bro nice to see you here!!! 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. 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. 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. Experts advise on 31 degrees+30 minus-zip. All uppers are assembled cleaned and tested before shipping. Add M4 cuts to Barrel Ext $15.00 We can modify your rifle extension to match the M4 cuts in an upper receiver. I checked what I have now. M4 Feed ramps on barrel extensions are a solid example. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. Would not feed to save its life! I built the upper using a Mega upper with a Compass Lake 18" barrel. You can post now and register later. Gun smith said , not head spaced properly. M4 extension with .350 M4 style feed ramps 11 Degree Target Crown Threaded Muzzle 5/8"x24 TPI Weight: 26.5 ounces A forum community dedicated to drag racing drivers and enthusiasts. So the engineers lowered the feed rampa into the receiver. Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. . Theres a bit more to it than just polishing. Not all mil-spec features advertised on the product information are the real mil-specs.
AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 You have a rifle barrel. But, as with anything else, this work can go too far. The parts are interchangeable. 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? JavaScript is disabled. I bought a .458 upper to go with it, with the extra internal clearance cut before anodizing. What is the difference between Modern, Performance, and Premium Series Barrels? Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. You cannot paste images directly.
AR9 - Help diagnosing feeding issue - Calguns.net 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. So, what youre saying is that an M16 upper (not M4 cut) will work with either barrel, but an M4 cut upper will only work with an M4 cut barrel. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. Supposedly you'll only notice issues with rapid/auto fire with a configuration like this. I wouldn't be concerned at all with any wear after modifying an upper receiver.
AR15 Feed Ramp Cut & Polish Kit - School of the American Rifle Feed ramps on barrel extensions are a good example. Is getting it as part of the upper better? A couple of times I ended up with the OK set up from the picture above. Polishing the edges of the chamber mouth to remove the edges of that chamfer will. 30 cal. Will my A3 upper reciever work with my M4 barrel extention.According to some or your posts they will.Thanks Bill. In short, if you have a Dremmel you can do it yourself. Buy AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16: GunBroker is the largest seller of AR15 Parts Gun Parts All: 974000728 . For a better experience, please enable JavaScript in your browser before proceeding.
Getting the AR Barrel and Receiver Configuration Correct #2.
AR-15 Barrel Extension Question - Sniper's Hide Forum What's the difference? pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. 16" Pre-Ban M4 Profile Barrel Assembly CARBINE Gas System About Upper assembly comes completely head spaced and test fired. Avoid Polishing Too Lightly Or Too Roughly The ramps are in the barrel extension. Instead, I just loaded up each mag with two rounds, and pushed the rounds forward by hand until the tip of .
Douglas 5.56 Stainless Steel Barrel 18" - 1~7 twist The tip of the cartridge rarely comes into contact with the upper receiver. Only took a few minutes. The barrel is supposed to have the M4 feed ramps. Your previous content has been restored. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. 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 . Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . 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. I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. The difference between standard feed ramps and M4 ramps is easy to see. There is a picture of the various options, hopefully another poster can link them. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. Required fields are marked *. By Yamil Sued August 6, 2021. Little polish. So, an M4 feed ramp includes the barrel extension and the upper. 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. Get The Best Trigger Pull Gauges To Make Every Shot Count. I too built a .458 SOCOM carbine . Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. 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. No feed ramps. For new construction barrels only. 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.
Barrel FAQs | Ballistic Advantage 50 bucks one way or the other on the barrel ain't squat! ago KrinkyDink2 9 hr.
6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas BCM 14.5" MK2 Upper (Standard) w/ 13" MLOK Handguard - FDE The best case is to have both an upper and barrel that have the feed ramps. I can still use the combination. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. You can put a M4 barrel and non-M4 receiver together, but you can't mismatch them the other way. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation. Create an account to follow your favorite communities and start taking part in conversations.
CUTTING M4 RAMPS - YouTube 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.