Criterion Barrels 18in AR-10 Rifle Length Gas System Barrel .308 M118 LR 1-10 Twist Parkerized 4140/4150 Chrome Moly Steel 10180-HYR. Criterion Barrels uses button rifling and manufactures these AR15 Barrels from gun barrel quality steel. Criterion...
Criterion Barrels 18in AR-10 Rifle Length Gas System Barrel .308 M118 LR 1-10 Twist Parkerized 4140/4150 Chrome Moly Steel 10180-HYR. Criterion Barrels uses button rifling and manufactures these AR15 Barrels from gun barrel quality steel. Criterion...