Uzi
The Uzi is a family of Israeli open-bolt, blowback-operated submachine guns and machine pistols first designed by Major Uziel "Uzi" Gal in the late 1940s, shortly after the establishment of the State of Israel. Wikipedia
Action: Blowback, open bolt
Cartridge: .22 LR.41 AE.45 ACP; 9×19mm Parabellum; 9×21mm IMI
Designed: 1950
Effective firing range: 200 m
In service: 1954–present
Length: : 445 mm (17.5 in) stockless; 470 mm (18.5 in) folding stock collapsed; 640 mm (25 in) folding stock extended;
Mass: 3.5 kg (7.72 lb)