A gun scraper tool has elements that are adapted to maintain firearms. More specifically, a gun scraper tool can have several components and scraping surfaces that can be used to disassemble a firearm and/or to scrape carbon and residue off of the appropriate areas of the firearm by using scraping surfaces. The gun scraper tool can have a roughly triangular housing and a plurality of tool components and scraping surfaces that use the housing as the base. The tool components and scraping surfaces can include a spindle, an exterior scraping blade, a pivoting brush have a base and a set of bristles, a cotter pin puller, a bolt tail brush having bristles, and a bolt carrier scraper. The variety of tasks capable of being accomplished with the disclosed gun scraper tool can minimize the need for additional cleaners or tools.