Product DescriptionThe Gemtech Quickmounts Flash Hider is engineered for AR-platform rifles chambered in 5.56x45mm NATO and provides a durable, suppressor-ready muzzle device with quick-mount lugs. Developed through extensive testing and user feedback, its aggressive, carbon-cutting groove design helps reduce carbon buildup in the suppressor to minimize the chance of the mount getting stuck. Built from steel with a black finish, it uses 1/2-28 threads and includes a precision mounting shim kit for proper timing and installation.Product Highlights Quick-mount lug design compatible with Gemtech Quickmount suppressor systems for fast attach/detach capability Carbon-cutting grooves help reduce suppressor carbon buildup and aid removal after extended firing 1/2-28 threaded flash hider for 5.56x45mm NATO / .223 Remington AR-platform barrels 2.4-inch overall length; noted as pre-drilled for pinning on 14.5-inch barrels Includes a precision mounting shim kit for accurate alignment and installationSpecs Brand: Gemtech Manufacturer Part Number: 12145 UPC: 609224348037 Product Type: Flash hider / suppressor mount (Quickmount) Caliber: 5.56x45mm NATO Thread Pattern: 1/2-28 Overall Length: 2.40 in Material: Steel Color/Finish: Black Platform Fit: AR-platform Includes: Precision mounting shim kit Additional Features: Blank firing adapter (BFA) groove; 3/4 in wrench flats; extended area behind lugs; carbon-cutting grooves; quick-mount lugsDisclaimer: 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.