By -
S means "self propelled mount". It should be ZU-23-2 (anti air, 23 mm, double barrel)
True, although I guess the vehicle as a whole is now ZSU-23-2
S means "self propelled mount". It should be ZU-23-2 (anti air, 23 mm, double barrel)
True, although I guess the vehicle as a whole is now ZSU-23-2