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It is an M4 carbine utilizing a short-stroke gas piston system and is available in either 5.56×45mm NATO or 6.8mm Remington SPC. The REC7 is Barrett's second AR-pattern rifle chambered for the 6.8mm Remington SPC cartridge, the first being the Barrett M468 rifle. The 6.8 SPC-chambered M468 rifle employed the same Stoner expanding gas system as ...
AR-15 Sporter Carbine (SP1 Carbine; Bundled with 3× scope) 2nd Generation Short Ribbed S-1 A1 No No .223 REM 16 in. A1 1:12 Yes A1 R6004 AR-15 Sporter (SP1; Bundled with Colt Reflex Sighting System) A1 Triangular S-1 A1 No No .223 REM 20 in. A1 1:12 Yes A1 R6007 AR-15 Sporter (SP1 Coltguard electroless nickel) A1 Triangular S-1 A1 No No .223 REM
On December 8, 2010, Adcor announced production of the A-556 rifle to the civilian market. On June 27, 2011, it was announced that the improved A-556 Elite variant would be available for sale to the public. In June 2012, a soldier was seen in Afghanistan with a A-556 upper receiver with a 10.5 inch barrel on an M4 lower receiver. [4]
The LVOA-C is a direct gas-impingement (DGI) operated rifle based on the Colt AR-15. It features a proprietary full-length fore-end with an integrated muzzle brake/flash suppressor, which prevents the use of a suppressor due to size constraints. The rifle is used for close-quarters combat with low visibility operation applications (LVOA).
The standard XM-15 has a forged 7075T6 aircraft-grade aluminum upper and lower receiver. Barrels of XM-15 firearms have a heavy profile and are hard chrome-lined 4150 alloy steel or 416 stainless steel. [2] [4] In Bushmaster's 2016 sales brochure, all new-production XM-15s are stated to be supplied with a 4150 steel barrel. [5]
It is compatible with most standard AR-15 parts, can mount various attachments such as options on its picatinny rails and has the ability to accept all AR-15/M16 type STANAG magazines. The standard M4 Type Carbine features a permanently fixed "Izzy" flash suppressor attached to a 14.5 in (370 mm) barrel, which brings the barrel to a total ...
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The M4, and its variants, is a lightweight 5.56×45mm NATO (and .223 Remington) caliber, gas-operated, magazine-fed, air-cooled selective fire AR-15-pattern firearm. Its gas operation consists of an internal piston (often incorrectly referred to as direct impingement ), [ 56 ] a rotating bolt, and bolt carrier that reciprocates into a receiver ...