CRKT Ruger AR Slip Joint Multi-Tool Knife 

Designer Joe Wu knows that there's a world of difference between the recreational shooter and the one that's spent years honing his skill. One notable difference: proper maintenance. Joe has given the AR Tool both a compact, highly useful blade on a slipjoint as well as a nine-in-one scraper tool. Built to quickly clean 12 critical surfaces of bolt components, it’s equipped to restore an AR to working order at the range or in the field. The precision-cut tool is ideal for cleaning the bolt, firing pin, carrier, and cam pin so your favorite range companion never slows down.