The Bore Tech C4 Carbon Remover is a new advanced chemical formulation never before introduced to the shooting industry. It is a non-flammable, non-hazardous and 100% biodegradable product that chemically reacts to stubborn carbon deposits. Bore Tech C4 is quick and easy, eliminating the time consuming and labor intensive cleaning we're all used to with carbon removal. Soak your parts for a few minutes and then patch or wipe dry. C4 works great for barrels, bolts faces, flash suppressors, chamber throats, revolver cylinders and any other place where extreme carbon fouling is present.