I just ordered an RMR for my MOS Glock and from my research looks like I need shorter screws, do I need bottom plate also?. Any help that I can get on how to properly mount the RMR to my MOS would be appreciated thanks.

Yes on both counts. The plate comes with the correct screws.


https://www.amazon.com/gp/prod..._title?ie=UTF8&psc=1

Should I use blue Loctite?

I did

Trijicon plate, dielectric grease, blue locktite and the correct torque and you will be mint.