Here is a PPSh-41 variant from Vietnam via red China. It is the K-50M version of the PLA K-50 smg which itself is a chinese PPSh-41.
This smg is a cool "manchurian kandidate" for a pistol. K-50M parts kits are not available so you would use a "regular" PPSh-41 as a starting point. An AK pistol grip and shortened front sight must be added. The barrel jacket is cut back and squeezed down to a small bushing (washer ??).
As a pistol the wire stock (a copy of the French MAT-49) is deleted. If used it would be a SBR and require registration as an NFA item. The action etc is of course altered for semi-only operation as is done with other PPSh-41 builds.