| [[Type 1 Armor-Piercing (AP) Shell Kai|Type 1 Armor Piercing Shell Kai]]<br>[[12.7cm Twin Mount Type-B Kai 4 (Wartime Modifications) + Anti-Aircraft Fire Director|12.7cm Twin Mount Model B Kai 4 + AAFD]]
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| [[Type 1 Armor-Piercing (AP) Shell Kai|Type 1 Armor Piercing Shell Kai]]<br>[[12.7cm Twin Mount Type-B Kai 4 (Wartime Modifications) + Anti-Aircraft Fire Director|12.7cm Twin Gun Mount BK4 + AAFD]]