Rock River Arms 18in SS Fluted Barrel

Rock River Arms 18 Inch Mid-Length Fluted Stainless Steel .223 Wylde Barrel With Extension And Pin Specifications for Rock River Arms 18in SS Fluted Barrel: Manufacturer: Rock River Arms Color: Steel Fabric/Material: 416R Stainless Steel Cartridge: .223 Wylde Barrel Length: 18 in Barrel Profile: Standard Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 1/2×28 Barrel Twist Rate: 1-8 Flutes: Yes Gun Make: Rock River Arms Gun Model: Universal Weight: 37.3 oz Package Contents: Rock River Arms 18in SS Fluted Barrel