Called EOTech to see if I should return it.
The guy answered literally in one ring, no machines, great customer service.
I told him the problem and he was extremely surprised and told me that I had it mounted wrong! He said take it off, take the included key and tighten it two clicks clockwise.
Works perfectly. If anybody has my dumb question, that's what you should do. I must not have read the directions properly. Thanks.