Excellent! - Holosun HE403R Micro 1X20mm 2 MOA Red Dot Sight

Great Optic, great price! The dial knob on the side makes changing the brightness fast and intuitive. I prefer the dial to the push buttons if your transitioning form inside a strict to out door or if you want to dial the dot down for a more precise shot. This is the way to go. As with all Holosun products I own solid performance!!