Product Description The LUTH-AR BL-06CW is a precision-made crush washer designed for .223/5.56 caliber firearms with a 1/2x28 threaded muzzle. When installing a muzzle device such as a flash hider or muzzle brake, this crush washer compresses slightly under torque to securely lock the device in place and ensure proper alignment. Manufactured by LUTH-AR, a trusted name in AR-platform components and accessories, this washer provides a reliable, single-use solution for achieving the correct index and a tight, rattle-free fit on your muzzle device installation. Product Highlights Designed for .223/5.56 caliber firearms with 1/2x28 threaded barrels Crushes slightly under torque to lock muzzle devices in the correct orientation Compatible with flash hiders, muzzle brakes, and similar muzzle devices Manufactured by LUTH-AR for dependable quality and fit Compact and lightweight single-use accessory for professional or home gunsmithing Specs Brand: LUTH-AR MPN: BL06CW UPC: 859819007690 Caliber Compatibility: .223 / 5.56 Thread Pitch: 1/2x28 Type: Crush Washer Application: Muzzle Device Installation 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. ]]>