Seems just ok. - Meprolight MPO-DF Open Emitter Pistol Sight with RMR Footprint 3.5 MOA Dot

Mounted this on an IWI masada. It fits well and looks good. It does not have shake awake, which I do find to be a downside. The refresh rate is also pretty sub-par. I've seen vetter withnoptics that are under the 100 price point. If you don't know, red dots work by a led. If a red dot has a poor refresh rate, it's due to the led blinking slow enough that it seems flutter when doing target transitions. Instead of a solid dot, you see almost a chain of dots when switching from target to target.