PPSh-41
The PPSh-41 is a selective-fire, open-bolt, blowback submachine gun that fires the 7.62×25mm Tokarev round. It was designed by Georgy Shpagin of the Soviet Union to be a cheaper and simplified alternative to the PPD-40.
The PPSh-41 saw extensive... Wikipedia
Designer: Georgy Shpagin
Caliber: 7.62x25mm Tokarev cartridge
Length: 843 mm (33.2 in)
Manufacturer: Numerous
Mass: 3.63 kg (8.0 lb) (without magazine)
Muzzle velocity: 488 m/s (1,600.6 ft/s)
Place of origin: Soviet Union