PSA PA-15 16" Nitride M4 Carbine 5.56 NATO Classic AR-15 13.5" M-Lok Railed Rifle

Barrel: Chrome-moly vanadium steel 16" barrel chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. The M4 profile barrel is finished off with a 13.5" PSA M-Lok free-float handguard, low-profile gas block, and A2 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 Carrier Group: The bolt is made of shot-peened, Mil-spec Carpenter 158A(R) steel. The gas key is secured with grade 8 fasteners and staked to the 8620 Steel Full-auto profile carrier.Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "MULTI" for the caliber. The finish is hard-coat anodized. The Mil-spec diameter 7075-T6 buffer tube is hard-coat anodized, has 6 adjustment positions and is fitted with a PSA Classic Carbine Stock for a traditional AR-15 look and feel. The rifle is finished off with a PSA Classic A2 grip, and standard Mil-Spec AR-15 Fire Control Group.