Key FeaturesFits 8-32 threads.22, .223 Caliber / 5.56mm mopSingle pack mopDetailsBirchwood Casey Gun Cleaning Mops are made from high quality components and are effective at applying solvents and lubricants. *Always make sure your firearm is unloaded before cleaning.41322 – Cleaning Mop .22, .223 Caliber / 5.56mm