In fact, holographic red dot sights will continue to function accurately even if the lens is partially broken or obscured. As long as some glass is present and visible, the reticle will appear and continue to work properly.23 feb 2021
Do red dots turn on automatically?
When the red dot is stationary, the dot is not illuminated, but as soon as it's moved the dot turns on instantly. Manufacturers like Aimpoint don't need an automatic turn-off function, because their red dots have a supreme battery life and can last for years.30 jul 2018
Do pistol red dots stay on all the time?
With that said, modern handgun red dots are built to last. They can take some serious abuse before they tap out. Some are even tougher than basic iron sights. And because these optics last tens of thousands of hours on a single battery, you don't have to worry about the battery dying on you in the fight.18 oct 2021