PSA 16" PISTOL-LENGTH 300AAC BLACKOUT 1/8 PHOSPHATE 13.5" KEYMOD UPPER - WITH NICKEL BORON BCG, CH, & MBUS SIGHT SET

Barrel: This Chrome Moly vanadium 4150V barrel is chambered in .300 AAC Blackout with a 1:8" twist, M4 barrel extension, and a pistol-length gas system. It is finished off with a .750" diameter gas block, PSA 13.5" Keymod free float rail, and an A2 Flash Hider. Upper: The forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer. Bolt Carrier Group: 5.56mm Bolt Carrier Group is Nickel Boron coated and features a 9310 bolt.  The gas key is hardened and secured with Grade 8 fasteners, and is staked per Mil-Spec. Includes: Magpul MBUS Sight Set, Black