'''Used to improve:''' {{Equipment/Link|12.7cm Twin Gun Mount}}, {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 2}}, {{Equipment/Link|12.7cm Single Gun Mount}}, {{Equipment/Link|120mm/50 Twin Gun Mount}}, {{Equipment/Link|12.7cm Single High-angle Gun Mount (Late Model)}}, {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 2}}, {{Equipment/Link|QF 4.7inch Gun Mk.XII Kai}}, {{Equipment/Link|130mm B-13 Twin Gun Mount}}, {{Equipment/Link|12.7cm Twin Gun Mount Model A}} {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 3}}
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'''Used to improve:'''
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*(0~5): {{Equipment/Link|12.7cm Single Gun Mount}}, {{Equipment/Link|12.7cm Single High-angle Gun Mount (Late Model)}} (x2), {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 2}}, {{Equipment/Link|QF 4.7inch Gun Mk.XII Kai}} (x2), {{Equipment/Link|130mm B-13 Twin Gun Mount}} (x3), {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 3}} (x3),
*(Max): {{Equipment/Link|12.7cm Twin Gun Mount}} (x2), {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 2}} (x3), {{Equipment/Link|12.7cm Twin Gun Mount Model A}} (x2)