Rapid-fire guns are firearms that can fire multiple rounds in quick succession. Two examples of rapid-fire guns are the UZI and the STEN. The UZI is a submachine gun designed by Uziel Gal in Israel in the 1940s. It is a compact weapon that is easy to use and has become popular with military and police forces around the world. The STEN is a British submachine gun developed during World War II. It was designed to be cheap and easy to manufacture, and it was used extensively by British and Commonwealth forces during the war.