The 30mm automatic gun is designed for firing at light armored targets within
    a distance up to 1500 m, non-armored targets within a distance up to 4000 m
    and also at low-flying subsonic air targets up to 2000 m within a slant
    distance of 2500m. The gun can be fired in single shots or in burst
    (low or high rate of fire). It offers reliable functioning under severe conditions,
    such as temperature range from +50°C up to -50°C, in rain, dust, frost and
    in very dry environment.
 

Standard identification of 30mm automatic gun is 2A42.