Rock River Arms 16in Mid SS Barrel Post/No Threads

Rock River Arms 16 Inch Mid-Length Stainless Steel .223 Wylde Barrel With Extension And Pin, Unthreaded Specifications for Rock River Arms 16in Mid SS Barrel Post/No Threads: Manufacturer: Rock River Arms Color: Steel Fabric/Material: 416R Stainless Steel Cartridge: .223 Wylde Caliber: .223 Caliber Barrel Length: 16 in Barrel Profile: Standard Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: Non Threaded Barrel Twist Rate: 1-8 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 35 oz Package Contents: Rock River Arms 16in Mid SS Barrel Post/No Threads