I have been looking at the Primary arms 2.5x or 3x PAC with the ACSS reticle, prism scope. I have an astigmatism so red dots are out for me.

I've been running a Sparc AR with no regrets.

Romeo 6 on my mpx and Romeo 4s on my M4 pistols.
I like the dot in a circle. Easy for me to pick up the targets.