Ummmm......fellas, first off the Eotech is a very serious "combat sight" and this is what is was designed from the outset as. SOCOM uses the 553 for CQB "in place of" the Aimpoints that they were using for years (mainly M2 Comps). You may still see some Aimpoints but the majority of these type of shooters use the Eotech now.
Aimpoint has long supplied the US military with CQB red dots sights....this is true. They have indeed sold many thousands to them. The average GI has no choice in the kit that he may use including stuff bought on his own dime. However, US speacial forces (SEAL, Delta, etc) do have great latitude in what they can use and the vast majority now use the Eotech 553 SOCOM exclusively.....
I own several Aimpoint products (M2 Comp) as well as many Eotech`s (553 incl). I do prefer the Eotech (my preference).
If you are going to use the Aimpoint product on an AR, get a M2 Comp with QRP mount.....basically what the Rangers still use! I run this setup on a 14.5" carbine and love it! Don`t really need to spend all that dough on the M4....
Yes, Dave`s is a great place to shop! Just bought an Elcan Spectre DR from him..............