Mega Arms forged lower receiver, Iron Sight 15 upper receiver, Daniel Defense 16" lightweight barrel, M4A1 RIS II rail, VG6 Preceision Gamma 556 muzzle brake, BCM Gunfighter grip, Aimpoint PRO, American Defense mount, Inforce/HSP WML weapon light, HSP Thorntail offset mount, Troy Industries back-up front sight, Knights Armament back-up rear sight, LMT SOPMOD stock, Head Down Productions bolt carrier group