AR-15 Barrel 16" DPMS AP4 5.56x45mm Chamber 1:9" Twist A3 Upper Includes Front Sight Gas Block Assembly

BL-11- AP4
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Carbine barrel measures 16" long and includes the front sight/gas block assembly. Features a 1:9" twist, button rifled barrel with six right-hand grooves, threaded muzzle, and bayonet lug. Made from A.I.S.I. 4140 chrome-moly steel. 5.56x45mm NATO Chamber. Not chrome lined.

Note: Does not come with a front sight post, sight spring or sight detent. You will need to buy ARR-544 to complete the sight assembly.