Product DescriptionThe CMMG AR-15 Crush Washer (1/2") is designed for use at the rifle muzzle when installing or replacing compatible muzzle devices. When properly torqued, the washer compresses to help achieve correct timing/alignment of components such as flash hiders or muzzle brakes. Ideal for AR-15 builds, maintenance, and muzzle device swaps using the specified 1/2" size.Product Highlights Purpose-built crush washer for AR-15 rifle muzzle installations Helps properly time and secure compatible flash hiders and muzzle brakes Compresses under torque to support correct orientation during installation 1/2" size for compatible AR-15 muzzle setups OEM CMMG replacement part for maintenance and build projectsSpecs Brand: CMMG Product Type: Crush washer (muzzle) Compatibility: AR-15 Size: 1/2" Manufacturer Part Number: 55DA5B8 UPC: 810046231388 Country of Origin: United States of America Weight: 0.01 lbDisclaimer: 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.