| ''Developed in absolute secrecy at the Kure Naval Arsenal's Artillery Division, this is the largest and most powerful battleship gun in the world.<br>It is a state-of-the-art gun capable of outranging enemy battleships with its maximum range in excess of 40km. To ensure secrecy, it is officially designated as a 16 in gun.<br>It is capable of strong anti-air fire when used alongside the Type 3 Shell. | | ''Developed in absolute secrecy at the Kure Naval Arsenal's Artillery Division, this is the largest and most powerful battleship gun in the world.<br>It is a state-of-the-art gun capable of outranging enemy battleships with its maximum range in excess of 40km. To ensure secrecy, it is officially designated as a 16 in gun.<br>It is capable of strong anti-air fire when used alongside the Type 3 Shell. |
| '''Used to improve:''' {{Equipment/Link|41cm Twin Gun Mount}}, {{Equipment/Link|46cm Triple Gun Mount}}, {{Equipment/Link|Prototype 41cm Triple Gun Mount}}, {{Equipment/Link|Prototype 51cm Twin Gun Mount}}, {{Equipment/Link|16inch Triple Gun Mount Mk.7}}, {{Equipment/Link|30.5cm Triple Gun Mount Kai}}, {{Equipment/Link|41cm Triple Gun Mount Kai}}, {{Equipment/Link|38cm Quadruple Gun Mount}}, {{Equipment/Link|46cm Triple Gun Mount Kai}}, {{Equipment/Link|51cm Twin Gun Mount}}, {{Equipment/Link|Type 1 Armor Piercing Shell Kai}}, {{Equipment/Link|16inch Triple Gun Mount Mk.6 mod.2}} | | '''Used to improve:''' {{Equipment/Link|41cm Twin Gun Mount}}, {{Equipment/Link|46cm Triple Gun Mount}}, {{Equipment/Link|Prototype 41cm Triple Gun Mount}}, {{Equipment/Link|Prototype 51cm Twin Gun Mount}}, {{Equipment/Link|16inch Triple Gun Mount Mk.7}}, {{Equipment/Link|30.5cm Triple Gun Mount Kai}}, {{Equipment/Link|41cm Triple Gun Mount Kai}}, {{Equipment/Link|38cm Quadruple Gun Mount}}, {{Equipment/Link|46cm Triple Gun Mount Kai}}, {{Equipment/Link|51cm Twin Gun Mount}}, {{Equipment/Link|Type 1 Armor Piercing Shell Kai}}, {{Equipment/Link|16inch Triple Gun Mount Mk.6 mod.2}} |