求助各位大佬
有人知道新银河sig17机瞄的螺丝是多大的吗?螺丝丢了,不知道买多大的https://mag1.sdgun.net/public/emotion/face_wulian.pnghttps://mag1.sdgun.net/public/emotion/face_wulian.pnghttps://mag1.sdgun.net/public/emotion/face_wulian.pnghttp://picapp.sdgun.net/pic/20250922/1758514579564758_354.jpg
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