Because rails are 3 dimensional and has width.
Between 1435mm and 1520mm there's only 85mm space. I am not even sure if you could mount two rail that close.
Between 1435mm and 1520mm there's only 85mm space. I am not even sure if you could mount two rail that close.
3" equals to 76.2mm, which leaves only 8.8mm. No way.