The Gun Tool CORE-AR15 is the ideal tool for performing critical "keep shooting" tasks on your AR15 like removing carbon from every surface on and in your BCG, clearing jams, punching stubborn takedown pins or on-the-fly optics and sight adjustments. Small and streamlined in stature, but big on solving the most commonly encountered problems, keeping you up and running in the field or at the range. Features- liner locks, carabiner, takedown punch, A2 front sight adjuster (4 prong), cord cutter, bottle opener, bolt override, scope turret adjuster, carrier scraper, firing pin scraper, bolt and BCG scraper.