Holosun 507K is by far the top micro purple dot sight for Glock 43X MOS (RMSc footprint). It is created for slender profile handguns, and its exactly the same width as being the Glock 43X slide without protruding on the sides. I’ve usually had a adore detest marriage with Glock. https://glock-43-9mm69013.blog2news.com/21977540/glock-43x-mos-frame-an-overview