Works on handguns, rifles, shotguns, and AR-15's; Bronze Brushes: 1 - .38-9mm Caliber, 1 - .40/10mm Caliber, 1 - .45 Caliber, 1 - 410 Shotgun, 1 - 20-Gauge, 1 - 12-Gauge, 1 - .22 Caliber, 1 - .25 Caliber, 1 - .270 Caliber, 1 - .30 Caliber; Cotton Mops: 1 - .22 Caliber, 1 - .38/9mm Caliber, 1 - .410 Shotgun, 1 - 20-Gauge, 1 - 12-Gauge; Non-Woven Patches: 25 - 1.5", 25 - 2.0", 25 - 3.0"; Utility Brushes: 1 - Bronze Utility Brush, 1 - Nylon Utility Brush; Brass Cleaning Rod Adapters: 2 - Brass Adapters (Male 8-32 to Female 5/16-27, Male 8-32 to Female 8-32), 2 - Nylon Patch Holders (Thread Male 5/16-27, Thread Male 8-32); Solid Brass Cleaning Rods: 1 - Brass Rod with T-Handle, 2 - Brass Rods