COLT M4 UPPER ASSEMBLY WITH 16 INCH BARREL WITH 1/9 TWIST & COMPLETE BOLT ASSEMBLY
Colt M4 Upper with 16 inch barrel, A2 rear sight, A2 flash suppressor with closed bottom, large oval radius short length ribbed hand grips, round thumb pad forward assist, brass deflector, bayonet lug, and complete bolt assembly. Colt barrel stamped “C MP 5.56MM NATO 1/9”. Barrel profile includes machined cutout for grenade launcher assembly / bi-pod mount. Side mount sling swivels. Appears new. NSN.