Hoppe's No 9 Gun Bore Cleaner. 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. Package Contents Hoppe's No.9 Nitro Powder Solvent Pint 916 Package Contents: Hoppe's No 9 Gun Bore Cleaner Hoppe's No 9 Gun Bore Cleaner