MANUFACTURER: Tapco FAMILY: Accessories MODEL: Muzzle Brake TYPE: Accessory-Muzzle Brakes ITEM GROUP: Rifle Accessories CALIBER/GAUGE: 22 LR FINISH: Silver Anodized FINISH TYPE: Stainless Steel OVERALL LENGTH: 2" THREAD PATTERN: 1/2x28 SHIPPING WEIGHT: 0.1 lbs. ADDL INFO: For Ruger 10/22 Rifles ADDL INFO: Bull Barrel .920 MFG MODEL NO: TAP22010 UPC: 810122800040