PSA 7.5" Pistol-Length 5.56 NATO 1/7 Nitride 7" Lightweight Hex M-Lok MOE Shockwave Pistol, Flat Dark Earth

Barrel: 7.5" 4150V chrome moly steel. Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. The barrel is nitride treated and finished off with a PSA 7" LightweightHex Full Picatinny M-Lok Free Float Rail, a .750" low-profile gas block, and an A2 style flash hider.Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. Uppers include forward assist and dust cover. These uppers are made for us right here in the USA by a mil-spec manufacturer.Bolt: Full-auto profile bolt carrier group. Shot-peened, mil-spec Carpenter No. 158A(R) steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "MULTI" for caliber. Fitted with a KAK Industries Shockwave Blade, Magpul MOE Grip, and MOE Polymer Trigger Guard all in Flat Dark Earth.