Some gun owners believe that the M4 ramps can help for some of the larger-diameter cartridges in use. A2-Kit Upper Receiver, Rear Sight Assembly, Charging Handle, Forward If your upper receiver has no M4 feed ramp cuts, it can be used with a barrel with or without ramps. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. One new winner* is announced every week! 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). This receiver is made to Military Specifications and include the forwards assist assembly and dust cover. These cookies are for displaying external media content provided by YouTube. I bought a .458 upper to go with it, with the extra internal clearance cut before anodizing. I too built a .458 SOCOM carbine . Access from your Country was disabled by the administrator. This cookie is absolutely necessary to store your consent and, if applicable, your individual selection for the use of cookies on your end device in order to determine whether you have already given your consent when you call up the website again. Analysis cookies collect information anonymously. I just contacted RRA to find out if their A2 uppers have M4 ramps. forum.accurateshooter.com/threads/modify-ar15-a2-barrel-extension-for-m4-feed-ramp.4023404/, Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical You also repeated yourself. The C7 style carry handle allows mounting a scope.. I'd argue find an A2 upper with M4 cuts and an M4 barrel and go that route. 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! Use with any Mil-Spec lower receiver. Learn more about our Return Policy. - 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. 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? This cookie is used to track from which website the anonymized user proceeded to any page or sub-page. Get 10% Off - Subscribe to Our Email List, Toll-Free: +1-800-504-5897 So, an M4 feed ramp includes the barrel extension and the upper. A2 carry handle style Upper, complete with cuts for mounting A2 rear sight. As they are becoming more and more a standard, and certainly do not do any harm to us. 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. No but legitimately a barrel with M4 feed ramps and receiver without should function without issue, its the other way around that causes problems. What Is A 10 22 Rifle And Why You Should Own A Ruger 10-22 Rifle? This is our first trip to Europe and we're arriving from the US into Munich Airport Terminal 2 on Lufthansa Airlines in Sept. Look at the bushmaster website and go to I think its Page 30 of the 2016 catalog. Sorry to bump an old thread, but did anyone confirm that fulton armory is now machining the m4 feed ramps before anodizing? Looking at a map of the airport, it appears that terminal 2 is quite a ways from the train station. Get discounts from top brands and our latest reviews! AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. https://www.AR15.Com/media/mediaFiles/416992/Screenshot_20200913-102043_Gallery_jpg-1589938.JPG, https://i67.servimg.com/u/f67/15/27/93/02/scan0010.jpg, https://www.opticsplanet.com/doublestar-a2-upper-receiver-complete.html, https://oldarmsofidaho.com/product/usgi-a2-handguards-with-heat-shield/, https://www.ar15.com/forums/equipment-exchange/Colt-A2-Upper-receiver-complete-with-M4-feed-ramps/159-2045036/, https://i.postimg.cc/Ss4XPB5P/IMG-3703.jpg, https://i.postimg.cc/fLv3QHQR/IMG-3704.jpg, https://i.postimg.cc/pdzhqW08/IMG-3705.jpg, https://i.postimg.cc/Hkf8wctd/IMG-3709.jpg. instead of mil-spec. A closer look at uppers and barrel extensions. This information helps us to understand how our visitors use our website. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. I sent him my Upper, BCG and CH and the mounted the barrel, cut the ramps, checked the headspace and test fired it - all for free since I bought my barrel from them. *Must have a registered ARFCOM account to win. Does this upper have the hole on the carry handle to mount an optic? Little polish. Any use of this content without express written consent is prohibited. So the engineers lowered the feed rampa into the receiver. They exist, not sure if anyone currently sells them new though.