Well on my Tempe gun I run iron sights and a camera. On my field gun, I run a red dot, (which isn't even on) lined up with my front iron sight, and a camera. I tried to use a laser once, but it only lets people know that you're there waiting for them. Pressure sensed lasers are junk because by the time you push it and line it up with your target you're probably out anyway. Same goes with Flash lights, for CQB fields, your best bet is to rush on them with whatever optics you want (you're shooting a 6mm bb you don't need anything special) and be the quickest to pull the trigger.