Universal Gun Cleaning Kit Cleans most rifles, shotguns and pistols Contains 10 wire brushes to fit 12-gauge, 20-gauge, .410-gauge, .45-caliber, .40-caliber, .357/.38-caliber (9 mm), .30-caliber, .270-caliber, .22-caliber and .17-caliber guns Contains five mops to fit 12-gauge, 20-gauge, .410-gauge, .357/.58-caliber (9 mm) and .22-caliber guns