As a retailer of Trijicon rifle and handgun sights, we hear it all the time that customers had no idea what the products were like until they looked through them.   There are so many variables with the Trijicon ACOGS and the differences between each, even though not much to an experienced shooter, can be some what overwelming when  you have no idea what the lines are.  I had to have a meeting with my Trijicon Sales Rep to find out what all of the specs were and how some of these were sighted in and aimed.   Those simple X crosshairs are somewhat a thing of the past and what use to be the M16 gunsight on the Eotech is now a low tech combat optic.
Low tech might be the way you want to go with your optic but chosing between having optics that are battery operated and fiber optics can also be a hard one.  Many people have moved away from 4x optics on their guns because they don’t do you all that good in close up fighting, the Trijicon Reflex sights for sale are a good competition to red dot and Eotech sights.  You can get a wide field of view from the Trijicon RX30A-51 which we have in stock in our store with the amber dot.  This gives you a defined illuminated dot that does not haze or look blurred like red dots.  You get a similar field of view as the Eotech 512.