Shaw Ruger 22 LR Non-Threaded Rifle Barrel Spiral Flute 16in Bull Profile 1-16 Twist Matte Blued. Bentz style target chamber for increased accuracy potential. Flutes add stiffness while reducing weight. Specifications for Shaw Ruger 10/22 22 LR Non-Threaded Rifle Barrel: Manufacturer: Shaw Fabric/Material: Stainless Steel Caliber: .22 Long Rifle Gas Block Journal Size-Diameter: .920 in Barrel Twist Rate: 1-16 Barrel Material: 416R Stainless Steel Gun Make: Ruger Gun Model: Ruger 10/22 Gun Type: Rifle Condition: New Features of Shaw Ruger 10/22 22 LR Non-Threaded Rifle Barrel Drop-In Barrel upgrade for the Ruger 10/22. Factory carbine profile with Bentz style target chamber for increased accuracy potential. Flutes add stiffness while reducing weight. Package Contents: Shaw Ruger 10/22 22 LR Non-Threaded Rifle Barrel What firearm models does the manufacturer say Shaw Ruger 10/22 22 LR Non-Threaded Rifle Barrel is compatible with? The manufacturer suggests that Shaw Ruger 10/22 22 LR Non-Threaded Rifle Barrel is compatible with Ruger 10/22Shaw 1022BCMHF16: Ruger 10/22 22 LR Non-Threaded Barrel Spiral Flute 16in Bull Profile 1-16 Twist Matte Blued