Birchwood Bore Scrubber 2 in 1 Bore Cleaner is a complete formula for copper and nitro fouling. This 2-in-1 solvent does it all! Attacks, dissolves and removes all types of barrel fouling including: lead, copper, plastic, carbon and powder fouling. Superior rust preventive additives provide long term protection after cleaning. Contains no nitrobenzene, butyl cellosolve or other highly toxic ingredients. Safe, fast and easy-to-use. Great for rifles, shotguns and handguns. 5 fluid ounces.