I think it’s safe to say that if it comes down to the wire, it’s between Trijicon, Aimpoint and Eotech.   I’m still amazed at how well Eotech holds their own even though we are on the verge of a technological shift with gun accessories.  The first combat optic that impressed me was the Leupold CQT because it gave you an optic that was meant for close up fighting that didn’t get dead on  you when the batteries died.   The CQT is a nice optic but nobody gives you the field of view that the Eotech gun sight gives you.   Field of view in a gun sight means faster target acquisition.  It only takes a 2 second test on a firing range.

Even at ranges under 100yds you still might be at a disadvantage with anything other than an Eotech.  There is one optic that I think is my favorite other than the Eotech.   The Trijicon TA01NSN  gives you the medium range gun fighting ability, but the trusty iron sights mounted on the top get you back to the basics.   If you learn to shoot properly with both eyes open your field of view is as good as your eyes and this is something that can get lost in the realm of combat optics.   Don’t forget to keep your iron sights on your M4 Carbine.  It might be tempting to just put a scope on it, but the what ifs do happen.