Choroszmanów submachine gun () was a Polish submachine gun created by Grzegorz Choroszman during German occupation of Poland.
Between autumn of 1943 and February 1944 Choroszman manufactured this weapon with his sons in his workshop. It was used by Polish partisans in the Tadeusz Kościuszko unit, which men fought in and around Podlesie.7,62-мм пистолет-пулемёт Хорошмана // журнал "Солдат удачи", № 10, 2007
The design was based roughly on the Soviet PPD-40. It was a simple, sturdy and capable design that was easy and inexpensive to produce. This design allowed Polish partisans to significantly increase the ferocity of raids and guerrilla strikes against the occupiers. Only 22 copies of this gun were created between 1943-1944 due to lack of resources and due to the presence of other firearms.Andrzej Ciepliński; Ryszard Woźniak, Encyklopedia współczesnej broni palnej (od połowy XIX wieku), 1997
One SMG was stored in Warsaw museum, another one - in Museum of the Soviet Army in Moscow.
See also Bechowiec-1 Błyskawica submachine gun KIS (weapon)
References
Literature С. Плотников. Партизанские самоделки // журнал "Оружие", № 4, 2000.