How to cock a break barrel:

Make sure the airgun is "ON SAFE". With one hand grasp the top of the rear stock firmly, avoid contact with the trigger, and brace the butt end of the stock against your thigh. Grasp the barrel near the muzzle end, just behind the front sight. Pull downward and to the rear until it comes to a solid stop. You will hear a click indicating that the spring piston has been locked into position (see illustration to right).