How to Install Holosun 407c on Glock 19
This guide details the straightforward installation of a Holosun 407C red dot sight onto a Brownells Glock 19 Gen 4 MOS slide. It covers the importance of proper optic alignment, the use of blue Loctite for screw security, and considerations for suppressor height versus factory sights regarding co-witness. The process is presented as simple and achievable for beginners.











