18" 5.56 LT Profile Rifle Length Gas System .750 Gas Block - 1x8 Twist. Polygonal 3 groove and machined finish standard. M4 feed ramp is included. ***THIS IS A STAINLESS STEEL BARREL WITH A BLACK FINISH***
Dimensions:
Under handguard: 0.78 inches
In front of gas block: 0.73 inches
Thread: 1/2x28
Weight: 1.5lbs
Model: BHW 18" Rifle Mid, Black