DS30B rapid fire cannon
The DS30B rapid-fire cannon is a 30mm Oerlikon stabilized, ship-protection system created by MSI-Defence Systems and controlled by a single operator. Description. The DS30B is the predecessor to the 30mm DS30M Mark 2 Automated Small Calibre Gun, which mounts a 30mm Mark 44 Bushmaster II. The DS30B system consists of a marinized, stabilized gun mount which accommodates the Oerlikon KCB 30mm cannon.