Im an old vet, now retired and looking to build some ARs as a hobby to keep me doing something that I will enjoy. which is basicallly an m16a1 cut down. Our 6mm ARC barrel come standard with 1-7.5 Twist, M4 Feed Ramps and gas tube. Then you can get a regular rifle barrel for the upper with no ramps. They are better! 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. 4. 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. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. 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? Id just get one for that barrel and find a barrel with m4 extension for the upper you already have. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. Gas block area is .750 diameter. Use this M4 Barrel extention with M4 feedramps. And that is the important thing! It's best to have M4 ramps on both the upper and barrel. 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. Modern Series Barrels. M4 can better explain their benefit, although they help with more reliable feeding. The M4, and the CAR-15, before it have had similar problems like the ones you mentioned. Barrel customizations are also available. 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! Would not feed to save its life! - 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. The only one I found is LaRue's upper, but it won't work with the hand guard I'm using (Geissele MKIII). Forged 7075-T6 aluminum is harder than a bulls balls. Some argue that, factually, its a step to enable a smoother feeding. The photo shows the dents and the bolt lugs line up perfectly. Earlfillmore 13 hr. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. Notify me of follow-up comments by email. Since the M4 barrel is one and a half inches shorter than the minimum legal barrel you can install in an AR15, the M4 gas tube will be, of course, smaller. It's an interesting question. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. M4 barrel to non M4 receiver is fine, but not the other way around. First, the M4 barrel and non-M4 upper isnt likely to cause issues, but due to the relief cut on an M4-spec upper, there will be a gap that works like an edge that most definitely can snag the bullet and stub the round. You can post now and register later. It's going to a gunsmith to be shortened and rethreaded anyways, can they just grind/polish the feed ramps to match or is it more involved than that? Not all mil-spec features advertised on the product information are the real mil-specs. 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. 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 must log in or register to reply here. Your link has been automatically embedded. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. 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! So, what is the difference between M4 feed ramps and regular ones? I can still use the combination. so im thinking I might as well just get the unramp upper. 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-. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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. Your email address will not be published. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. 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. It's best to use rifle/rifle combo or M4/M4. instead of mil-spec. For new construction barrels only. Both. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. May 17, 2008 in The Armorer. A forum community dedicated to drag racing drivers and enthusiasts. However, its rare now to find an upper receiver or a ready-to-go barrel that doesnt have the M4 cuts. 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. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. . 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. 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. You cannot paste images directly. Just put it in and shoot it. I'm a machinist in the aerospace industry and lucky enough to have unrestricted access to a really nice machine shop so the modification from rifle to M4 feed ramps is no sweat, I've done it once before a few years back with a .250" carbide cutter in the mill for a friend and it came out looking indistinguishable from a true M4 extension. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. The barrel extension and the receiver both have to have the cuts. Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. 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 From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. For a better experience, please enable JavaScript in your browser before proceeding. A4 Complete Upper Receiver. 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. So, an M4 feed ramp includes the barrel extension and the upper. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. I just need a little guidance on this and I'm having trouble getting good results from Google. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? If a barrel comes with the feed ramps could I take them off? You have the option of barrel type, thread, fluting, finish type and to add a match bolt. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. If I have a rifle ramp upper and get the barrel later and coincidentally will have an m4 ramp. The Fora platform includes forum software by XenForo. Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp. In general, all you need to understand is that the M4 feed ramps include the barrel extension and upper receiver. "It will last 5k rounds instead of 4k. Mind shooting me a link where I can pick on a C marked A1 carry handle for $150? Looking For Bear Creek Arsenal Barrels Review? M4 ramps help in feeding in for carbine in full auto. This has been my concern with modifying the aluminum parts. 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. I wouldn't be concerned at all with any wear after modifying an upper receiver. 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. The ramps on the regular rifle-type extension are cut just to the edge of the extension. America's Ultimate Shooting Sports Discounter, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window). You need to match up barrels to receivers for optimum performance. 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. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. Caught a deal on a matched barrel and bolt. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. It may not display this or other websites correctly. The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. I've seen that pic, it is a good reference. The rifle-platform M16s dont use them. The barrel blanks available are made from 416 Stainless Steel. M16's fed pretty well before the M4 feed ramps were introduced. He had more to say and added some more engineer and gun designer speak too. Press J to jump to the feed. 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. Full M4 feed ramps are on both the upper and barrel extension. Seems counter intuitive to recommend an M4 cut upper, especially if the barrel Im looking at has the rifle feed ramp (not M4 cut). 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. Lol. A couple of times I ended up with the OK set up from the picture above. 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 Mil-spec is good for the masses, and if you want the job done it is a great start. However Ive built numerous ar15 and lr308 rifles and pistols. And that the M4s and M4A1s are issued M855 which has a slight difference in bullet shape vs. the older 55gr M193 BALL. Bear Creek Arsenal Barrels - 6.5 Grendel Type 2 Barrel This Gorilla Machining AR-15 16" heavy Black Nitride 6.5 Grendel barrel has a Carbine length gas system with a 1:8 twist. Feed ramps on barrel extensions are a good example. There's a 7 degree difference between standard and M4 ramps. However, I have seen more than a few basement gunsmith hackjobs using a dremel, some Jack Daniels/liquid courage, and an unsteady hand that have made a total, unrepairable mess of the job. All NFA rules apply. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. 50 bucks one way or the other on the barrel ain't squat! 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. AR9 - Help diagnosing feeding issue. Clear editor. 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). Editors Note: This article was originally published in January of 2019. I like all my guns to be reliable. I had seen these pix years ago and dismissed the idea of mix and match. 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? Your previous content has been restored. 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. 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 Questions on how to install your new BA barrel? In short, if you have a Dremmel you can do it yourself. Reliability is the main concern for me when I re-barrel this rifle. Those ramps line up with the barrel, which are cut deeper than on a rifle barrel. 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. http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. All uppers are assembled cleaned and tested before shipping. 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. All Rights Reserved. colt A1E1 733 uppers didn't have extended carbine feedramps ? check out the. To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. They aid in feeding the round into the chamber from the magazine more easily, which make uppers and barrel extension matched. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. 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. Just because you can, doesn't mean you should. Read Now. 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. Change the angle so that the ramp ends at the exact same point. Barrels are Douglas 416 stainless steel with 1-7 twist with M4 feed ramps Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Man, its crazy how many of yall have absolutely no idea why you do what you do. Only took a few minutes. Most work performed while-you-wait, evening and saturday appointments available. pictures would help. No need to alter the upper. I'm lookin for a clear definition as to what they are, and what they do to enhance a given rifle's performance? Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. The M-16/M4 are great weapons. However the DD 14.5 are ideally meant to mate up with M4 style upper receiver feedramps. Thanks! Load a magazine with two or three rounds, lock the bolt group back on your rifle or carbine and insert the magazine. Thats an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. Go back to writing school. BrianEnos.com 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. 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.
Football Agents Looking For Players In Africa,
Barron County Jail Mugshots,
Representante A Nivel Nacional De La Florida 2021,
Sic Cargo Pilot Jobs Near Texas,
Articles A