Without regular cleaning, your gun won't function properly. Use the Hoppe's Black Gun Cleaner, which works well on most firearm bores. To apply, simply press down on the pump and follow the instructions on the aluminum bottle. Made in USA. The Hoppe's Black Gun Cleaner comes in an aluminum bottle with a pump and can be used on most firearm bores.Specifications and Features: Product depth (in.): 1.75 Product height (in.): 7.25 Product width (in.): 1.75