Sergey Stechkin

Sergey Stechkin is a name associated with a Russian firearms designer, most notably known for the development of the Stechkin APS (Avtomatichesky Pistolet Stechkina), a Soviet automatic pistol designed in the late 1940s. The Stechkin APS was notable for its ability to fire in both semi-automatic and fully automatic modes, with a distinctive design that included a detachable shoulder stock.