The Mongoose Dual Technology Brush is a brush and swab combo that is aggressive, fast, agile, clever, and has a great tolerance! The Mongoose allows you to clean quicker from Breech-to-Muzzle. By using a brush and swab in one step, even limited breech firearms can be cleaned with ease. This is a quick brush and swab combo for in the field, in a pinch, and includes Tufcor proprietary core wire. Now you can spend more time shooting and less time cleaning! Features - Clean:40, 401, 404, 405, 41, 10mm, 10.75mm - Thread Size: 8-32 - Length: 2"