槍上麵有個蓋子，俗稱“三八大蓋”！是作戰時防塵用的。這部視頻說得很清楚。沒蓋蓋，是因為丟失了蓋子，但是一樣可以用。

來源: 精木於 2026-05-03 14:27:57 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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