This adjustable crane stock is constructed of a durable, high-quality polymer and includes more user friendly features than a standard stock. The butt plate is rubberized and textured to provide ultimate stability and a solid grip for the shooter. The QD sling mount points offer more sling options and can be used to easily maneuver and carry your rifle. This stock features a handy two fin adjustment lever near the fulcrum to make removing and reattaching the stock to a buffer tube a simple operation. This crane stock has a battery compartment in the rear of the stock and is designed to fit Nunchuck style batteries in the tube, stick battery in the buffer tube (Not Included), or small LiPo brick batteries in the butt plate space. This adjustable crane stock is the perfect accessory option for a wide range of AEGs.