The Rearden R2C flash hider provides dual suppressor mounting compatibility with both Rearden Atlas/Atlas XL systems and Plan B type mounts. Precision-machined from 17-4 PH stainless steel with a distinctive rainbow black PVD finish, the R2C features 5/8-24 threading and .375-inch bore for .30 caliber rifles. Atlas adapter overrun measures approximately 1.600 inches while Atlas XL adapter overrun measures approximately 0.750 inches. Shims included for precise timing and alignment. Dual Mounting System Compatibility The R2C works with both Rearden Atlas/Atlas XL and Plan B type mounting systems, providing versatility for use with multiple suppressor brands and models. This dual compatibility eliminates the need for different muzzle devices when switching between suppressors or mounting standards. 17-4 PH Stainless Steel with Rainbow PVD Machined from 17-4 PH precipitation-hardened stainless steel for corrosion resistance and durability. The rainbow black PVD coating provides exceptional wear resistance and distinctive aesthetics while resisting scratching and chemical attack. 5/8-24 Threading - .375 Bore Standard 5/8-24 thread pitch fits .308 Winchester, 6.5 Creedmoor, .300 Blackout, and similar .30 caliber rifles. The .375-inch bore accommodates projectiles up to .375 caliber. Installation and Alignment Always use an alignment rod to ensure proper system setup. Clean all mating surfaces thoroughly. Torque muzzle device to approximately 30 ft-lbs and apply Rocksett. Ensure the device is square against the shoulder. When attaching suppressors, verify threads and tapers are clean, then torque to 10 ft-lbs. Verify alignment before firing. Compatibility Notice Use on Q brand suppressors voids warranty. R2C is designed for Atlas and Plan B mounting systems only. The Rearden R2C delivers versatile suppressor mounting with precision machining and durable construction. SPECIFICATIONS Manufacturer: Rearden Model: R2C Type: Flash Hider / Suppressor Mount Thread Pitch: 5/8-24 Bore Diameter: .375 inches Material: 17-4 PH Stainless Steel Finish: Rainbow Black PVD Mounting Compatibility: Rearden Atlas, Rearden Atlas XL, Plan B type mounts Atlas Adapter Overrun: Approximately 1.600 Atlas XL Adapter Overrun: Approximately 0.750 Installation Torque (Muzzle Device): 30 ft-lbs Installation Torque (Suppressor): 10 ft-lbs Shims: Included Warranty Notice: Use on Q suppressors voids warranty Compatibility: .30 caliber rifles (.308 Win, 6.5 Creedmoor, .300 BLK, etc.)