The Sanders Armory AR-15 20″ 6MM ARC Performance Series 416R Stainless Steel 1:7.5 Twist Upper Assembly with BCG and Charging Handle. It comes with a Performance Series barrel, Air gauge tested, M4 Barrel extensions. It is equipped with a low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Rifle Length Gas Tube. The Free Float Ultra Slim Line MLOK Handguard has a full line top rail. The 6MM ARC (.136) Nitride BCG with Hardened Phosphate Extractor and Sanders Armory Standard Charging Handle. The upper receiver is an AR15 / M16 Mil-Spec Upper Receiver with Spring Loaded Steel Dust Cover and Forward Assist. This AR15 Upper Receiver is forged from 7075-T6 aircraft aluminum, is precision machined to mil-spec M16/M4 specifications, and features M4 feed ramps, steel dust door, and billet forward assist. AR-15 Mil-Spec Upper Assembly with Spring Loaded Steel Dust Cover and Forward Assist 20″ 6MM ARC Match Grade Stainless Steel 416R Tapered Barrel The barrel is Air Gauge tested 1:7.5 Twist rate .750 Low Profile QPQ Steel Gas Block Rifle Length Stainless Steel Gas Tube 15″ Free Float Ultra Slim Line MLOK Handguard Your choice of (5/8 x 24 Thread Pitch) Flash Hiders and Muzzle Brake 6MM Type 2 (.136) Nitride BCG with Hardened Phosphate Bolt and Extractor Standard Charging Handle Shipping Limitations: We do not ship to the District of Columbia (Washington, D.C.); Massachusetts; Connecticut; Chicago, Cook County, Deerfield, Highland Park or Aurora Illinois; New Jersey; New York; Puerto Rico; Hawaii; or Canada. No international shipping, all must be within the 48 Contiguous United States. No APO/PPO/FPO’s.
