Ok this is not a scale drawing of a schematic i got from Budsgunshop.com on my Girsan MC1911HC and i wanna check if my math is right so i can start looking for some night sights. But i see the angle of the dovetail as being 65 degrees on both sides, and the base width at .346" ..............am i correct on this? And is there anything else i am missing? The depth is from some point i cannot see on the drawing. Also i was told the same metric measurements by Yavuz the parent company of Girsan.