Carbon is the enemy of black guns. Regular use quickly builds up carbon on bolts and ring pins. The moving parts on an AR15 require a precision-scraping solution, so we developed The AR15 Scraper the first scraper designed to clean 12 critical surfaces on the bolt carrier group. The innovative, double-ended swivel design saves time by removing carbon quickly and easily from the entire bolt carrier group. Carbon just ran out of places to hide. Product Details Firing pin large diameter scraper Bolt tail exterior scraper Behind-cartridge extractor scraper Firing pin small diameter scraper Bolt tail shoulder scraper Cotter pin puller Bolt cam pin scraper Bolt waist scraper 1/4 bit driver Bolt carrier scraper (2) Between bolt lugs scraper Bolt tail interior scraper Bolt face scraper