Product DescriptionThe Rearden R2S is a durable, nitride-finished flash hider designed for 5/8-24 muzzle threads. Built from 17-4 PH stainless steel, it is compatible with Atlas, Atlas XL, and Plan B style mounting interfaces, making it a strong choice for modern rifle setups where reliable fitment and corrosion resistance matter. Shims are not included; if you need to precisely time the device, shims will be required, and some barrels may need a shim depending on thread relief.Product Highlights 17-4 PH stainless steel construction for strength and longevity Nitride finish for enhanced corrosion and wear resistance Compatible with Rearden Atlas and Atlas XL interfaces Plan B compatible mounting interface for broad suppressor-mount ecosystem support Shims not included; timing may require shims depending on barrel/shoulder setup Specs Brand: Rearden Product Type: Flash Hider Thread Pitch: 5/8-24 Material: 17-4 PH stainless steel Finish: Nitride Mount Compatibility: Atlas / Atlas XL / Plan B compatible Shims: Not included Manufacturer Part Number: 10103 UPC: 850035804919 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.