Product DescriptionThe Rearden FHD Flash Hider is a heat-treated muzzle device designed for 1/2-28 threaded barrels and engineered to work with Plan B-style mounting systems. Manufactured from 17-4 PH stainless steel in H900 condition, it features an H900 "wheat" finish (variations may exist) and an updated design with larger rear wrench flats for easier installation. It is compatible with Rearden Atlas and Atlas XL systems and is intended to be used with proper alignment practices to ensure safe, concentric setup.Product Highlights Heat-treated Rearden FHD flash hider for 1/2-28 threaded barrels Made from durable 17-4 PH stainless steel (H900 condition) Atlas / Atlas XL / Plan B compatible for versatile suppressor-mounting setups Updated design includes larger wrench flats on the rear for improved tool engagement Shims not included; shims may be required for timing or barrels without thread reliefSpecs Brand: Rearden Product Type: Flash Hider Thread Pitch: 1/2-28 Material: 17-4 PH stainless steel (H900) Finish: H900 Wheat / Heat Treated (variations may exist) Compatibility: Atlas / Atlas XL / Plan B compatible Shims: Not included Manufacturer Part Number: 10021 UPC: 850035804261Disclaimer: 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.