I got one of these for my AK style .223 and really like it.
http://www.amazon.com/gp/aw/d/B004TD...0_M3T1_SC_dp_3
It has the multiple reticles and brightness levels and has settings for night vision setup if you decide you want to. The laser that is on there is pretty nice and can go pretty far at night. The laser has a remote pressure pad for momentary on/off. I also like that the mount is part of the sight and is a quick release style. Overall I am very pleased with it for what I use it for.
I put it on my Brothers DPMS AR and it co-witnesses perfect with his flip up sights so he had me order one for him. I haven't been able to sight his in yet, but the sight seems very sturdy and very well made.