Does anybody have an answer for my problem? My SDP po1 has Heine straight 8 sights. As I am getting older it has become extremely difficult to pick them up. I would like to replace them but I noticed the rear sight mount is milled. Therefore I can't just install P01 sights. What can I do? Is the sight milled for a certain firearm size other than a CZ P01 that I can order in it's place?