Algodoo

Just a simple little gun/cannon, to load and fire just push the black thing (itll be hard to) under the steel thing(not the ball) to the back of the barrel and let go of it. Than load a ball of your choice in, push it to the steel thing and pull up on the steel thing and it'll fire! Roughly 720-730 FPS at the muzzle. Also just a tip, but when your pulling up on the steel thing it will push the gun either up or down, if you don't want it to affect aim than just pull it on a good angle.