PSA 11.5" 5.56 1/7 Phosphate 10.5" Lightweight Hex M-Lok MOE SBA3 Pistol Kit

Barrel: 11.5" 4150V Chrome Moly Vanadium steel, phosphate coated and chambered in 5.56 NATO with a 1 in 7" twist. The carbine-length gas barrel is finished off with a PSA 10.5" Lightweight Hex Full Picatinny M-Lok Free Float Rail, a low profile gas block, and an 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: The bolt is made of Mil-spec shot-peened Carpenter 158 steel. The 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. The pistol kit includes an SBA3 pistol stabilizing brace, Magpul MOE Pistol grip, Magpul MOE polymer trigger guard, carbine buffer spring, and standard carbine buffer.