Why did the drum magazine work on the PPSH 41 and not the Thompson? - Quora
PPSh-41 - Wikipedia
PPSH-41 with an experimental "sideways" drum mag. Apparently these were tested in late 1941/early 1942 for more convenient storage and handling. : r/ForgottenWeapons
S&T PPSh-41 WWII Electric Blowback Airsoft AEG Submachine Gun (with Drum)
PPSH-41 Drum Magazine SALE - AtlanticFirearms.com
ARES PPSh-41 Real Wood Airsoft AEG Submachine Gun w/ Drum Mag, Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore
PPSh-41 Drum Magazine with Pouch, 71rd, 7.62x25, *Good*
National Museum of American History
PPSH 41 w/Drum | Hell Let Loose Wiki | Fandom
Pouch for a spare drum magazine of the Soviet PPSh-41 submachine gun | eBay
PPSh-41 the Struggle of loading a Drum Magazine (ППШ 41) - YouTube
Gun Review: The Soviet PPSh-41 Submachine Gun - Athlon Outdoors
PPSh-41 Replica Drum Dummy Magazine - Marshall's Arsenal
drum magazine for PPSh 41 submachine-gun | Imperial War Museums