I've narrowed my list down, but it's still considerable. There's several models from EOtech, Aimpoint, and Trijicon i've been looking at, but I don't want to get stuck with something that i'll regret, so im deferring to a higher intelligence - you. My budget is $500 or less...and 500 is pushing it, but I should be able to convince my better half that I need it. I don't shoot anything beyond 100 yards, unfortunately, if that helps? Whatever it is, i want it to look like it belongs on my Colt LE6940 The one im leaning heavily towards right now is the CompM2 by Aimpoint But i just don't know So really - im asking your opinions. What do you shoot with and why? No right or wrong answer.