The term GUN ANTIQUE can be summarized as a weapon from the past, with the four-letter word STEN being a type of submachine gun. The STEN gun was developed in Britain during World War II and was used by the British Army and other Allied forces. It was a simple, inexpensive, and reliable weapon that was mass-produced and widely used. The STEN gun was eventually replaced by more modern weapons, but it remains an iconic symbol of the war.