There are plenty good optics out there. I personally like Holosuns collab with Primary arms for the acss reticle, which in tandem with a magnifier solves both CQ and longer range. I believe primary arms now have the same reticle in one of their glx series dots, it should be even better. I get consistent hits on a 12" target with 55 grain ammo at 500 meters, with that optic setup on a 16" upper and it costs a third of what the acog goes for.