MC-7 extra strength bore cleaner is a convenient aerosol version of our top seller, MC-7. MC7XT has been formulated with an enhanced combination of cleaners to work faster than the original version of MC-7 and it's ammonia free. Features: Quickly removes copper, lead, carbon and powder fouling Cleans bores, receiver and trigger groups Non abrasive Ammonia free Safe, quick and easy Non abrasive - harmless to the bore surface Removes all types of fouling