DS-39 () was a Soviet medium machine gun, designed by Vasily Degtyaryov, that was used during the Second World War. The work on the gun's design began in 1930, and it was accepted by the Red Army in September, 1939. About 10,000 were made from 1939 to 1941, but the weapon was not successful in service and its production was discontinued after the German invasion began in June, 1941, with factories converted to produce the older, more reliable PM M1910 (a WWI-era Maxim machine gun design) which was in turn replaced by the SG-43 Goryunov medium machine gun in 1943.
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DS-39 () was a Soviet medium machine gun, designed by Vasily Degtyaryov, that was used during the Second World War. The work on the gun's design began in 1930, and it was accepted by the Red Army in September, 1939. About 10,000 were made from 1939 to 1941, but the weapon was not successful in service and its production was discontinued after the German invasion began in June, 1941, with factories converted to produce the older, more reliable PM M1910 (a WWI-era Maxim machine gun design) which was in turn replaced by the SG-43 Goryunov medium machine gun in 1943.
==Background== The Soviets began mulling on a replacement for the PM M1910 in the 1920s: while the Maxim proved to be a sound design, it was slow to manufacture, required specialized machine tools and skilled workers, it was also heavy to carry around in the battlefield, specially with the soldiers having to carry water for cooling the barrel.
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