Chrome-moly vanadium steel barrel chambered in .5.56 NATO, with a 1:7 twist rate, M4 barrel extension and a pistol-length gas system. The nitrided barrel is finished with a DPMS Quad Rail free-float handguard, R-marked front-sight gas block, and an A2 flash hider. These forged lowers are made from 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 DPMS CAR-style blade pistol brace. The pistol is finished with a DPMS Classic A2 grip and a Mil-Spec AR-15 Fire Control Group.