Daniel Defense M4A1, RIII, Semi-automatic, AR, 223 Remington/5.56 NATO, 14.5" Pinned (16" OAL), Black, Polymer, 1-32 Round Daniel Defense Magazine, 1:7, 32 Rounds, B5Systems CAR 15 Stock, Nickel Boron Bolt Carrier Group, Government Profile Barrel, Mid-Length Gas System WEBGB-M4A1