The Probert Encyclopaedia of Warfare

DEGTYAREV DPM

The Degtyarev DPM was a Soviet light machine-gun produced from 1941 to 1950, and was a modification of the Degtyarev DP which replaced the Degtyarev DP in the army. It had the same specifications as the earlier Degtyarev DP, the modifications being primarily structural to improve reliability in the field.
Research Degtyarev DPM