I was in a LGS and was checking this out:
Leupold 1.5-4x20mm Leupold Mark AR Mod 1 Riflescope, FireDot SPR Reticle
It runs $399. There is a $299 version without the FireDot. It is a green reticle in he crosshairs. The fireDot is a cool option it's a hybrid scope . I think. I'm getting this next. It has great reviews.