Yeah, screw ACOGs and EOTECHs... what you need is a custom NcStar tactical railed scope from Rijas... lifetime warrantied and guaranteed to make you shoot 1/3 MOA out to 700 yards, for only $799.95. It's really a bargain considering what all you get. And it's combat tested, too.
For an extra $399 they have a model that they took apart and hand polished the glass on and resealed with that rtv stuff from NASA and they guarantee 1/16th MOA @100 yards.