Just keep pulling the trigger, unload the mag, reload, repeat. Thats the cycle of fun with a semi-auto BB air-gun like the Umarex TDP. This well-priced BB air pistol is great for shooting cans or knocking down objects. It has a 19 round drop-free metal Mag and fires as fast as you can pull the trigger. Experience the fun and action of shooting semi-auto airguns with the Umarex T.D.P. 45 and enjoy popping targets at a fraction of the cost. Not only will you save a bundle on ammo, reloading the Mag will be a cinch, especially if you buy an Umarex airgun BB speedloader!