PSA 8.5" .300 AAC Blackout 1:7 Nitride 7" Lightweight M-Lok MOE EPT SBA3 Pistol Kit – 5165449761

Barrel: 8.5" 4150V Chrome Moly vanadium steel, nitride treated and chambered in 300AAC Blackout with a 1 in 7" twist. Pistol length gas barrel is finished off with a PSA Lightweight 7" M-LOK Rail, a low profile gas block, and a PSA A2 Flash Hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.
Bolt Carrier Group: Bolt made of mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec.
Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features Enhanced Polished Trigger (EPT), Magpul Grip, Magpul Trigger Guard, and black oxide coated hammer and trigger springs. Also includes SB Tactical SBA3 Adjustable Pistol Brace, castle nut, latch plate, carbine buffer spring, 5 positioning mil-spec buffer tube, and standard carbine buffer.