How To Mount A Holosun 507K To A G43x MOS
Mounting a Holosun 507K on a Glock 43X MOS requires slide modification due to the factory posts being designed for the Shield Arms RMSc footprint. GlockStore offers a service to mill the slide, allowing the 507K to sit lower for better co-witnessing with suppressor sights. This direct mount provides a more natural point of aim compared to using adapter plates, which raise the optic.








