Rearden Calico Features The Rearden Calico is a flash hider threaded at 5/8x24 with a .375 bore size constructed for durability and consistent flash suppression performance across applications ranging from standalone muzzle device use to suppressor-ready configurations with CAT and TSFX compatible mounting systems. The 5/8x24 thread pattern and .375 bore cover a wide range of centerfire rifle platforms commonly threaded at this pitch and the Calico s design accommodates pin-and-weld installation on 14.5 barrels when used with an appropriate shim or accuwasher for shooters building compliant SBR-length builds. As with all muzzle devices proper installation and alignment are recommended to ensure safe operation and consistent suppressor engagement. The nitride finish 5/8x24 flash hider is treated with a nitride surface process that delivers superior hardness corrosion resistance and a consistent black appearance that holds up to sustained heat cycles and field exposure without degradation or finish failure. Constructed for reliable performance in demanding applications the Calico maintains consistent flash suppression and suppressor interface geometry through hard use on any compatible host platform. Rearden Calico Specifications Manufacturer: Rearden Model: Calico Type: Flash Hider Thread Pitch: 5/8x24 Bore Size: .375 Finish: Nitride Color: Black Suppressor Compatibility: CAT / TSFX Pin and Weld Compatible: Yes with appropriate shim or accuwasher on 14.5 barrels