Designed to accommodate the largest possible variety of guns, this is the best tool you could own for working on your firearms. Configures to handle bolt-action rifles, break-open shotguns, AR-15s, and handguns. A center aluminum channel allows you to move individual components to the ideal position for whatever firearm you are working on. Then adjust each component for perfect position and secure support. Two adjustable offset clamps at the rear base put a tight grip on a wide range of buttstock configurations, and the front support is adjustable for different heights.