WW2 Machine Gun is a term used to refer to two specific weapons used during World War II: the STEN and the BREN. The STEN was a British-made submachine gun that was mass-produced and widely used by British and Commonwealth forces throughout the war. The BREN was a Czech-made light machine gun that was adopted by the British Army in 1938 and used extensively by British and Commonwealth forces during the war. Both weapons were reliable, lightweight, and easy to use, making them popular among Allied forces.