A fictional upgrade of the destroyer main battery that was carried by the Yūgumo-class destroyers among others.<br>
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Its maximum elevation is set particularly high, but because the basic structure of its reloading system stays the same its anti-air capabilities are limited. <br>However, thanks to the modifications that took various engagements into account it shall exhibit its excellent shelling power when used by Type-A as well as Type-C destroyers.