Rock River Arms 16in CAR CM Barrel

Rock River Arms 16 Inch Carbine 5.56 Nato Barrel With Extension And Pin Specifications for Rock River Arms 16in CAR CM Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome Moly Cartridge: 5.56x45mm NATO Barrel Length: 16 in Barrel Profile: Standard Gas System Length: Carbine Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 1/2×28 Barrel Twist Rate: 1-8 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 35 oz Package Contents: Rock River Arms 16in CAR CM Barrel