k-50m
The K-50M was a North Vietnamese modification of the PPSh-41 submachine gun. It was used by the PAVN and Việt Cộng during the Vietnam War.
The gun features a retractable wire stock modelled after the MAT-49 and an AK-47 pistol grip. Chambered in 7.62×25mm cartridge, the K-50M accepts both curved 35-round magazine and the 71-round drum one.