Product Description The Rearden R2S Flash Hider is a heat-treated, precision muzzle device designed for 1/2x28 threaded barrels. Machined from durable 17-4 PH steel and finished with an H900 "Wheat" heat-treat finish (variations may exist), it helps reduce visible muzzle flash while supporting modern suppressor mounting ecosystems. The R2S is compatible with Rearden Atlas/Atlas XL and Plan B-style interfaces, making it a versatile choice for compatible setups. Shims are not included; if you need to time the device, shims will be required, and some barrels may need a shim depending on thread relief. Product Highlights R2S flash hider for 1/2x28 threaded barrels Made from 17-4 PH steel for strength and corrosion resistance Atlas / Atlas XL compatible and Plan B compatible for flexible mounting options Heat treated with H900 "Wheat" finish (finish variations may exist) Shims not included; timing may require shims and some barrels may require a shim if no thread relief is present Specs Brand: Rearden Model: R2S Product Type: Flash Hider Thread Pitch: 1/2x28 Material: 17-4 PH steel Finish: Heat Treated; H900 "Wheat" finish (variations may exist) Compatibility: Atlas / Atlas XL compatible; Plan B compatible UPC: 850035804865 Manufacturer Part Number: 10087 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.