Leapers ARmorer's Combo Wrench provides a way to install and remove parts often replaced and or reinstalled on both the AR15 and AR308 platforms. It is equipped with a super slim free float barrel nut wrench, 3/4", 7/8", and 3-prong wrench slots, and a 5/8" wrench slot and flathead screw driver. This wrench is also compatible with 1/2" torque wrenches.