This CVA(TM) Barrel BlasterA(R) Anti-Rust Spray helps protect your barrel during bad weather or when storing your rifle. The anti-rust spray is designed for all muzzleloader barrels and also works on muzzleloader breech plugs. The Barrel BlasterA(R) Spray is compatible with all muzzleloading rifles and is highly recommended for use after cleaning your rifle or pistol. The CVA(TM) anti-rust spray keeps your barrel lubricated and helps stave off corrosion.The CVA(TM) Barrel Blaster Rust Preventative Spray comes in a 6 ounce easy-to-use aerosol spray can, that allows for easy application directly onto the barrel after cleaning your gun. This pocket-sized is easy to carry in the field or easy to store for later use.