引用:
原帖由 JBL 於 1-8-2011 01:45 發表
我都有上官網睇過,但佢下身無咗圓洞,變成密封......
小弟POST出黎係上下面平行都有細圓洞仔.......
Old version Lite Rail has holes in both top and bottom.
3-4 years ago they started to use the same M4 Rail product line machinery to save cost.
And US manufacturtors tend to not updating their official web page often. So the actual product may look differs to the picture in web site.