M-spec is great - OpticsPlanet Exclusive Sightmark Mini Shot M-Spec FMS 3 MOA Dot Reflex Sight 1x21mm

Used the M-Spec out on a trip to the range for the first-time last Friday. Had it on a Smith and Wesson and it gave an accurate and easy operation experience. Our whole group found the red dot to work well for them and had little issue with target acquisition. One thing I did discover is that people who are not used to shooting were not able to use the sight as effectively. I think this comes down to just experience in this area. The differing bright levels came in handy when overhead lighting changed making it more comfortable to look through after adjusting.