Yeah but what you gain is unnecessary for airsoft. They were designed for military and law enforcement and real guns that shoot bullets. We are shooting little plastic balls that are not exactly accurate at any real range.
Some red dots are garbage but you can get clone ones that work fine and you can get holosuns for a lot less than eotechs and other well known holographic or red dot sights and they are way more capable than what any airsofter needs.
People don't buy eotechs in airsoft because they need them they buy them because they want to tell everyone and feel special. Its the airsoft equivalent of a penis compensator tool.
I am not saying that people shouldn't buy them because it's their money but lets not kid ourselves what they really are about.
Six of one, half a dozen of the other. Clones don't work at all when using night vision, holosun does... sort of. EOTech just works.