I hammered out a set of 'big-eyes' using the Burris Landmark Compacts. This was my first try at a set of big-eyes and I used linear rails instead of the rods & bushings as I don't have a way to drill 4 parallel holes.
Total price was under $200 but the time investment was somewhat high (perfect for a DIY project, IMO).
Is there anyone in the Dallas area I can meet sometime with a set of real big-eyes so I can check these for quality?
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