Product DescriptionThe Rearden R2S is a compact, suppressor-mount compatible flash hider built for 1/2-28 threaded barrels with a square shoulder. Machined from durable 17-4 PH stainless steel and finished in black nitride for enhanced corrosion and wear resistance, the R2S provides flash reduction while also supporting Atlas, Atlas XL, and Plan B style mount interfaces. For installations requiring specific timing, shims are not included and may be necessary depending on your barrels thread relief.Product Highlights Closed-prong style flash hider design helps reduce visible muzzle flash Atlas / Atlas XL and Plan B compatible mount interface for suppressor systems 17-4 PH stainless steel construction for strength and longevity Black nitride finish for improved corrosion resistance and surface hardness Shims not included; timing may require shims depending on barrel shoulder/thread reliefSpecs Brand: Rearden Model: R2S Flash Hider Manufacturer Part Number: 10086 UPC: 850035804858 Muzzle Thread Pattern: 1/2-28 Mount Compatibility: Rearden Atlas / Atlas XL; Plan B compatible Material: 17-4 PH (H900) Finish: Black Nitride Bore Diameter: 0.375 in Overall Length: 1.74 in Length Added: 1.115 in Weight: 2.05 ozDisclaimer: 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 products manufacturer.