Mil Comm Mc25 Gun and Firearm Cleaner, Degreaser 4 Ounce Spray Easy cleaning for guns, firearms, rifles, pistols and shotguns. Water-based, double-acting gun and firearms cleaner/degreaser. Powerful detergent and enzymatic cleaning action. Odorless, biodegradable, non-toxic cleaner that emulsifies and removes firing debris on contact.Not a solvent (will not remove metals). Used nationwide in Canada by the RCMP (Royal Canadian Mounted Police). "GREEN" and Environmentally Friendly -- but super mean for cleaning.