Product DescriptionThe Yankee Hill Machine Co rifle thread protector helps prevent damage to your barrel&';s muzzle threads when a muzzle device is not installed. Made from steel and sized for .22/5.56 barrels with 1/2x28 threads, it features a protective .920" outer diameter profile and a matte black finish for a clean, low-glare look.Product Highlights Steel rifle thread protector designed to safeguard muzzle threads when no muzzle device is installed 1/2x28 thread pitch for common .22/5.56 rifle barrel threading .920" outer diameter profile for proper fit and coverage Textured exterior for improved grip during installation and removal Matte black finish to match many rifle barrel and muzzle device finishes Specs Brand Name: Yankee Hill Machine Co Product Type: Rifle thread protector Compatible Calibers: .22 / 5.56 Thread Pitch: 1/2x28 Outer Diameter: 0.920 in Material: Steel Finish: Matte Color: Black Manufacturer Part Number: YHM-3410-B UPC: 816701013870 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.