In light of the current social situations (political, crime, ultra-conservatives, ultra-liberals, fascists, & anti-fascists, etc), I broke down and bought a Rurger AR556 for myself and a PC9 for the wife (BTW: We are both college educated, middle of the road, semi conservative, & middle-class). We are also a couple of cantankerous old farts with no delusions of surviving even a short-term firefight. Just to forestall anyone asking "WHY": My maternal side is Irish. That's enough reason!
That being said, I put a Tru-Glo 1-6x lighted reticle on my AR556 (2 colors) and a lighted dot (2 colors on her PC9. I like both and would be comfortable with either (best of both worlds?) on the PC9. The red dot is slightly faster.\