I've got a Holosun and a couple of Sig Romeo 5 optics on my AR's, they've held zero and have worked fine over 3 years now. I've got flip-up Troy iron back up sights on the rifles, so if an optic goes down unexpectedly, I'm not exactly dead in the water.
Optics on handguns are a non-issue, because my Trijicon HDs and Truglo Tritium Pros always work.
Optics on handguns are a non-issue, because my Trijicon HDs and Truglo Tritium Pros always work.