前 sm36968209 次 sm37144840 番外編1 sm36834070 youtube https://youtu.be/PMWdO7MwQVATwitterhttps://twitter.com/militarysyoshin 参考文献webサイト https://medium.com/war-is-boring/the-hill-h15-submachine-gun-was-ahead-of-its-time-7f28bd21d04chttps://www.historicalfirearms.info/post/131708571508/hill-submachine-gun-developed-by-engineer-andhttps://www.thefirearmblog.com/blog/2018/09/14/the-springfield-armory-p90-hill-submachine-gun/http://www.smallarmsreview.com/display.article.cfm?idarticles=2060 初心者でもわかる機構の解説おすすめwebサイト https://youtu.be/RknxVivKyoYhttps://youtu.be/FNjkDsQmnbQhttps://accu-labo.com/?p=4734