Cleaning your firearm becomes a breeze with Foaming bore cleaner, Utilizing the power of expanding foam and time. To clean your bore effectively, all you need to do is spray it into the breech end. The foam will expand, seamlessly filling the bore and ensuring thorough product coverage. Allow it to sit until the foam breaks down and then remove it using an Otis Breech-to-Muzzle cleaning kit or a Ripcord for effortless and efficient cleaning.