Rock River Arms 20in .308 CM Varmint Barrel Assembly w/Gas Blk Black

Rock River Arms 20in .308 CM Varmint Barrel Assembly w/Gas Blk Black. 308 CM Varmint Non Threaded Barrel Assembly w/Gas Blk: Manufacturer: Rock River Arms Color: Black Cartridge: 7.62x51mm NATO Barrel Length: 20 in Barrel Profile: Varmint Gas System Length: Rifle Length Gas Block Journal Size-Diameter: .936 in Barrel Twist Rate: 1-10 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 55 oz Threads per Inch: Non Threaded Fabric/Material: Chrome Moly Package Contents: Rock River Arms 20in .308 CM Varmint Non Threaded Barrel Assembly w/Gas Blk Rock River Arms 308A0236ASY: 20in .308 CM Varmint Barrel Assembly w/Gas Blk Black