Firearms have lots of small areas that are difficult to clean. These areas are also prone to carbon and fouling build up. Pipe cleaners – great for hobbies and arts & crafts – are perfect for gun cleaning too. The extra-long length is perfect for cleaning the full length of the impingement gas tube as well as other hard to reach areas. Composed of a flexible wire core and absorbent cotton bristles, these pipe cleaners are 20 long and 1/8 diameter.