A STUN gun is a type of gun that uses an electric shock to incapacitate a person. A PELLET gun is a type of gun that fires small metal pellets, usually made of lead. A RIFLE is a type of gun that is designed to be fired from the shoulder and has a long barrel. RADAR guns are used to measure the speed of moving objects. A STAPLE gun is a type of gun that uses staples to attach materials together. A BURP gun is a type of submachine gun that was used in World War II. A SHOT gun is a type of gun that fires a number of pellets at once. A sten gun is a type of submachine gun that was used by British forces during World War II.