Rock River Arms 20in SS Varmint 1-8 Barrel Stainless Steel

Rock River Arms 20in SS Varmint 1-8 Barrel Stainless Steel. 223 Wylde Barrel With Extension And Pin Specifications for Rock River Arms 20in SS Varmint 1-8 Non Threaded Barrel: Manufacturer: Rock River Arms Color: Steel Caliber: .223 Wylde Barrel Length: 20 in Barrel Profile: Varmint Gas System Length: Mid Length Gas Block Journal Size-Diameter: .936 in Barrel Twist Rate: 1-8 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 67 oz Threads per Inch: Non Threaded Fabric/Material: 416R Stainless Steel Package Contents: Rock River Arms 20in SS Varmint 1-8 Non Threaded Barrel What firearm models does the manufacturer say Rock River Arms 20in SS Varmint 1-8 Non Threaded Barrel is compatible with? The manufacturer says that Rock River Arms 20in SS Varmint 1-8 Non Threaded Barrel is compatible with UniversalRock River Arms AR0226: 20in SS Varmint 1-8 Barrel Stainless Steel