** {{RedGunHeavy}} {{EquipmentLink|Prototype 51cm Twin Gun Mount|51cm Twin Gun Mount|Prototype 51cm Triple Gun Mount|text=Very Large Guns|link_category=Very Large Gun}}. | ** {{RedGunHeavy}} {{EquipmentLink|Prototype 51cm Twin Gun Mount|51cm Twin Gun Mount|Prototype 51cm Triple Gun Mount|text=Very Large Guns|link_category=Very Large Gun}}. |