NR-30 wani ganga ne mai kwalliya guda daya, gajeren baya da aka kunna, wanda ya kasance wani nau'i mai girma na makami na 23 mm NR-23 wanda aka gabatar a 1949. Ya kori wani abu mai nauyi (fiye da sau biyu nauyin nauyin 23 na NR-23), yana buƙatar ƙuƙwalwar ƙuƙwalwa tare da ƙuƙwalwar ƙuƙwalwa don hana lalacewar jirgin sama daga harbi. Kafin wannan bindiga, kayan aikin soja na Soviet na yau da kullum sun kasance 23 mm da 37 mm bindiga, waɗanda suke da bambanci sosai. 23 mm yana da iko sosai, amma tare da ƙananan saurin farawa, yayin da 37 mm ba shi da ƙimar wuta da ajiyar bindiga. Tambaya: Wane irin birki ne yake buƙatar shi?
wani bakin birki