Tanegashima

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Tanegashima matchlocks are a type of early firearm from japan named for the island on which said design originated in 1542. Based off a small number of imported matchlocks imported during the Sengoku period, the Japanese soon replicated and improved the design by developing sights and adopted them on a large scale. The use of these guns played a critical roll in the reunification of Japan, the eventual establishment of the Tokugawa Shogunate and the conclusion of the Sengoku period. Said design would remain in use for more than two and a half centuries until the Boshin war in 1870-71 when they were gradually superceded by more modern imported and locally manufactured firearms. As matchlocks Tanegashima guns used a lit length of wick, or slow match, to ignite the powder charge and as such were vulnerable to rain.

After the Battle of Baalkpan Bay Kurokawa gave the Grik the designs for Tanegashima Matchlocks, which they rapidly adopted. Said Tanegashima matchlocks were high caliber 20mm weapons. Recently they've been at least partially superseded by copies of Grand Alliance made caplock rifled muskets.