Optic mounting failures are a real thing. However, steps can be taken to virtually eliminate the chance of this happening when depending on optics to work.
One of the things I’ve noticed after talking with folks about pistol mounted red dot sights, is that not everyone is aware of types of failures that may occur with an RDS and how to deal with them. Spoiler: back up sights aren’t necessarily the answer. Let’s explore front sight obstructions, rear sight obstructions, and complete RDS failures.