BattleHawk Armory 24 Position .750 ID Adjustable Gas Block 4140 Steel - Tactile Adjustment with Detent BattleHawk Armory adjustable gas block for .750 gas journal barrels. Features 24-position tactile adjustment screw with detent and set screw to prevent over-adjustment. Constructed from 4140 steel with phosphate finish. Knurled set screws and gas tube roll pin included. Includes 7-inch wrench for adjustment. Set screw spacing .425 inches. Adjustment requires 3/32 hex. SPECIFICATIONS Manufacturer: BattleHawk Armory Type: Adjustable Gas Block Inner Diameter: .750 inches Adjustment Positions: 24 Material: 4140 Steel Finish: Phosphate Adjustment Type: Tactile screw with detent Over-Adjustment Protection: Set screw Set Screw Spacing: .425 inches Adjustment Tool: 3/32 hex Platform: AR-15 (.750 gas journal barrels) Included Items: - Adjustable gas block - Knurled set screws - Gas tube roll pin - 7" adjustment wrench