Holosun 507K is by far the top micro pink dot sight for Glock 43X MOS (RMSc footprint). It really is made for trim profile handguns, and its the same width as the Glock 43X slide without the need of sticking out on the sides. But the good news is the https://glock43xmosslide07282.blogmazing.com/19983347/new-step-by-step-map-for-glock-43x-mos-frame