I just received my Hahn rear sight (http://www.hahn-precision.com/armory.../buis_rear.htm) and am experiencing interference upon installation. Either the BCM reciever is out of spec on the large side, or the sight is out of spec on the small side.
This is the only M1913 spec I could find in a quick search: CLICK
According to that image, the rail is too wide on the top surface, but not overall.
Anyone else experience issues with either or both of these components? I just want to make sure I'm not a dumbass before I call Hahn or Bravo Company tomorrow.
Advise is appreciated.


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