Not clone correct but inspired by. Colt 10.3" FSB barrel, Colt upper, Colt BCG (with BCM upgrade), PRI Gasbuster charging handle, LMT (Lewis Machine and Tool) rear sight, used KAC (Knights Armament Co.) RAS (take-off—purchased from Shark Arms) with KAC M4 kit (4 rail covers—one is cut for a CQD sling mount—and vertical grip), and SureFire Warcomp. CQD sling mount and Magpul AFG not included.