Aqua Clean Bore Cleaner item # ACB004 is a highly concentrated water based formula that is guaranteed to remove copper, lead, carbon and powder fouling from rifle, handgun and black powder firearms. This formula is environmentally friendly as you can get. It is non-flammable, non-hazardous, contains no ammonia or solvents, is non-abrasive, has no harsh chemical odor, is safe to use and won't harm firearm finishes. It works great! Available in a 4 oz. squeeze bottle.