VKTR Industries Hammer Forged DI 5.56mm NATO Threaded Barrel 10.5in Fluted Carbine Length 1-7 Twist Nitride Black

VKTR Industries Hammer Forged DI 5.56mm NATO Threaded Barrel 10.5in Fluted Carbine Length 1-7 Twist Nitride Black. 0in 13.7in and 10.5in. VKTR utilizes a 1:7 (1 turn every 7 inches) twist rate on their 5.56 NATO barrels. It will stabilize any of the lighter weight 5.56 projectiles as well as newer heavier bullet profiles permitting the greatest possible performance with both. Features a true 5.56 NATO chamber for optimal reliability with higher-pressure ammunition and is equipped with M4 style f