|Material||4150 Chrome Moly Vanadium|
|Gas System Length||Mid|
|Gas Block Journal||.750″|
|Twist Rate||1:7 inches|
B. Kings Firearms barrels are manufactured by a Top Tier Barrel Manufacturer to our specifications. B. Kings Firearms barrels are made for combat and heavy duty use. We rate all of our Pinned Gas Block models for full auto use. We guarantee 1 MOA or better on all BKF barrels when used with match grade ammunition.