There then arose an urgent demand for a light and simple weapon capable of a high volume of fire, and the answer to this was the PPSh-41, designed by Georgii Shpagin.
9mm Conversion of the PPSh-41 The Germans in WWII took captured PPShs and converted them by inserting a 9mm barrel and a magazine adapter to accept MP 38 and 40 magazines. No modifications to the bolt face was necessary.
The PPSh-41 was one of the two captured SMGs that were considered to be modified for 9 mm x 19 ammunition and Finnish magazines around 1942 - 1943, but that project didn't go beyond prototype-stage, as SMG M/44 production was seen as better alternative.
The two biggest problems have been the nature of the construction of the PPSh-41 subguns they started with and the fact that they used a lightly loaded Chinese 7.62X25 round in their versions' development.
I believe this is a WWII German designate MP717(r) 9mm conversion of a Russian PPSh-41. 1951 ("01" in a circle) 1945: Polish: Hungarian ("11" in a circle)
This has been reproduced from "The Official PPSh-41 Submachine Gun Manual" translated by Major James F. Gebhardt, U.S. Army (Retired) Chapter VI LOADING the DRUM MAGAZINE. To load the drum magazine, one must: 1.
PPSh 41 Russian WWII Machinegun: A rare HUDSON Toy Company replica of this classic WWII rifle of the Russian Army. It is constructed entirely of metal with real wood stock.
BGS (out of business) PPSh-41 mag well adapter for 9mm STen magazines. Includes adapter and STen magazine, a 9mm barrel not included. $85 usd, plus shipping, for both adapter and magazine.
Making a blank-firing barrel for the PPSh-41. I took an old 7.62x25 barrel, rechambered it for 9mm. Threaded the muzzle 3/8"x 16". Used a 3/8"x 16" set screw and drilled out the center. Set screws are very hard to drill, so my son made a jig to screw in the set screw to …