76 mm divisional gun M1942 (ZiS-3)
The 76-mm divisional gun M1942 (ZiS-3) (Russian: 76-мм дивизионная пушка обр. 1942 г. (ЗиС-3)) was a Soviet 76.2 mm divisional field gun used during World War II. ZiS was a factory designation and stood for Zavod imeni Stalina (“factory named after Stalin“), the honorific title of Artillery Factory No. 92, which first constructed this gun.
Additional Information: en.wikipedia.org/wiki/76_mm_divisional_gun_M1942_(ZiS-3)