The Barnett Crank Cocking Device Revolution reduces the cocking tension to 16 pounds. It attaches to the butt plate of the stock and has 3/8 inch dovetail detachable mount for reinforcement and easy removal. It has a 1-crank handles and anti-reverse gear for safety. reduces cocking tension to 16 useful in many situations attaches to the butt plate of the stock features a 3/8 inch dove tail has an anti-reverse for saftey