The Birchwood Casey Firearm Cleaner is specially formulated to remove dirt, fouling, grease and oil quickly and easily. Firearm Cleaner Aerosol uses a high-pressure spray to clean metal surfaces fast, with a quick drying time that leaves no residue. It's a safe, easy and effective way to clean your firearm thoroughly or as a preparatory cleaner for bluing or browning. FeaturesSpecially formulated to remove dirt, fouling, grease and oil quickly and easilySafe, easy and effective way to clean your firearm thoroughlyNo residue left behind