How to Build a semiautomatic Lego gun
Most Lego guns require you to feed ammo, or at least cock the gun, every time you shoot. Not so with this model. This video features step-by step instructions and a demonstration of how to build a semiautomatic Lego rubber band gun quickly and easily. Never lose a Lego rubber band gun war to your friends again with the increased firepower of this semi-auto Lego shooting machine.