US Patent 7644529 Rifle bolt cleaning tool

A rifle bolt cleaning tool comprising a single piece of material with an annular bolt scraping chamber comprising a bottom and two inner walls that extend from the bottom of the scraping chamber upward and spread outward to form two top surfaces of the scraping chamber. The inner walls of the scraping chamber are concave in shape so as to fit snugly around a tail end of a rifle bolt. The distance between the two inner walls of the scraping chamber is roughly equivalent to the outside diameter of a rifle bolt. The inner walls of the scraping chamber extend upward from the bottom of the scraping chamber by a distance that is slightly greater than the length of the tail end of the bolt.