MC-7 bore cleaner and conditioner is the only one-step concentrated solvent needed for maintaining, cleaning and conditioning handguns, rifles, and shotguns. The MC-7 bore cleaner is the original and a staple for bore cleaning since the 80s. Highly effective in removing copper, lead, and carbon not to mention powder and wad fouling. This powerful cleaner can also be used on black powder guns. Features: Safe, quick and easy Non abrasive - harmless to the bore surface Removes all types of fouling