PSA 10.5" Carbine-Length 5.56 NATO 1:7 Phosphate 9" Lightweight M-Lok Upper - With BCG & CH

Barrel: 10.5" 4150V Chrome Moly vanadium steel, phosphate coated and chambered in 5.56 NATO with a 1 in 7" twist. Carbine-length gas barrel is finished off with a PSA Lightweight 9" 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: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec.