Hoppe's 9 Gun Bore Cleaner - 1 Pint Bottle. Hoppe 9 Nitro Solvent is quick super-efficient safe and easy to use. No.9 Hoppe's Bore Cleaner flows freely and penetrates rapidly. Note: Hazardous or flammable materials cannot ship UPS red (air) or international. Specifications for Hoppe's 9 Gun Bore Cleaner - 1 Pint Bottle: Manufacturer: Hoppe's 9 Volume: 16 oz Package Contents: Hoppe's 9 Gun Bore Cleaner - 1 Pint Bottle Hoppe's 9 916: Gun Bore Cleaner - 1 Pint Bottle