|Type||Medium machine gun|
|Place of origin||Soviet Union|
|Mass||14.3 kg (32 lb) gun body|
|Length||1,170 mm (3 ft 10 in)|
|Barrel length||720 mm (2 ft 4 in)|
|Caliber||7.62 mm (0.300 in)|
|Rate of fire||600 to 1200 round/min|
|Muzzle velocity||800 m/s (2,624 ft/s)|
|Effective firing range||1,000 m (3,300 ft)|
|Feed system||250 round fabric belts|
DS-39 (Russian: Дегтярёва Станковый образца 1939 года, romanized: Degtyaryova Stankovyy obraztsa 1939 goda) 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.
About 200 were captured by Finland in 1941 and issued to Finnish troops.