Degtyaryov-Shpagin DShK 1938
 

The DShK 1938 is a Soviet heavy anti-aircraft machine gun firing 12.7×108 mm Soviet cartridges. The DShK 1938 was used in several roles.
As an anti-aircraft weapon it was mounted on pintle and tripod mounts, and on a triple mount on the GAZ-AA truck. Late in the war, it was mounted on the cupolas of IS-2 tanks and ISU-152 self-propelled guns.
As a heavy machine gun it was used as an infantry heavy support weapon. In that case it was frequently deployed with a two-wheeled mounting and a single-sheet armour-plate gun shield similar to that developed by Sokolov for the 1910 Maxim gun.

It took its name from the weapons designers Vasily Degtyaryov, who designed the original weapon, and Georgi Shpagin, who improved the feed mechanism. It is sometimes nicknamed Dushka (lit. "Sweetie", "Dear"), from the abbreviation.

The DShK has been manufactured under license by a number of countries, including China and Romania.

In 1946, the DShK 1938/46 or DShKM (M for modernised) version was introduced.
 

Viet Minh fire at French airplanes at the battle of Dien Bien Phu.
 

DSshK 1938/46 12.7mm
Here with armor plate