The MG 42 (German: Maschinengewehr 42; English: Machine Gun 42) is a German general purpose machine gun designed in 1942. It fired the 7.92×57mm Mauser round. It went into service with the Wehrmacht from 1942 to 1945. It was infamous for its extremely high rate of fire of approximately 1200 RPM to 1500 RPM. It proved to be one of the most effective machine guns of World War II. Since its original iteration, the MG 42 was improved multiple times resulting in the M53, MG3 and MG74.
The gun's infamous reputation in World War II led to the gun being nicknamed "Hitler's Buzzsaw" by Allied troops.