I was the only one that saw the dot as green. I'm sure it was a real one. I check all of the signs that might be a indication that its fake.
Are you sure?
Copies warning - red dot sights copies - Aimpoint
"15. If your sight has a dot that is any colour other than red, or has any reticule other than a single red dot, it is a counterfeit. Beware of any sight that has a green colour dot, or the ability to change reticules."