Universal gun cleaning kit provides all the tools needed to clean any type of rifle, shotgun, or handgun. Universal Caliber：.17/ 4.39mm/ 5mm/. 20/. 204/. 22/. 221/. 223/. 224/5.7mm/.225/.240/.243/6mm/6.17mm/.25/6.35mm/6.5mm/.26/.270/ 6.