Product Description The Rearden R2 Flash Hider is a precision-engineered muzzle device built for shooters who demand performance and compatibility. Machined from 17-4 PH stainless steel and finished in a durable Black Nitride coating that achieves a surface hardness of 67 HRC, this flash hider offers exceptional corrosion resistance and long-term durability. Designed with a 0.375 bore and a 5/8-24 TPI square shoulder thread pattern, the R2 is compatible with the Rearden Atlas, Atlas XL, and Q Plan B suppressor systems, making it a versatile and reliable muzzle device for suppressor-ready builds. Rearden was founded on a mission to be great and innovate - and the R2 Flash Hider is a direct result of that philosophy. Product Highlights Constructed from 17-4 PH stainless steel for superior strength and corrosion resistance Black Nitride finish delivers a surface hardness of 67 HRC for extended wear life 5/8-24 TPI square shoulder threading for secure, precise installation Compatible with Rearden Atlas, Atlas XL, and Q Plan B suppressor mounts 0.375 bore diameter optimized for centerfire rifle applications Specs Brand: Rearden MFG Model: R2 Flash Hider MPN: 10100 UPC: 850035804889 Material: 17-4 PH Stainless Steel Finish: Black Nitride Surface Hardness: 67 HRC Bore Diameter: 0.375" Thread Pattern: 5/8-24 TPI Shoulder Type: Square Compatibility: Rearden Atlas, Atlas XL, Q Plan B Weight: 0.5 lbs Shims: Not included (required for timed installation; barrel may require a shim if manufacturer did not put a thread relief on it) 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. ]]>