Solid budget red dot - SightMark Mini Shot M-Spec M1 FMS 1x 21x15mm Reflex Red Dot Sight

I have been using this sight with the tall riser on my AR15 build for a few months now. Originally sighted in at 50/200 and flip up irons if needed as back up. I frequently put up multiple USPSA targets at 25 to 50 yards and work shots with both eyes open while moving to various barricade positions. Estimating 800 rounds now with this sight and I have not had to adjust it other than when I adjusted the riser more forward. I have not intentionally abused it however it has handled moderate bumps and knocks without issues. Haven’t had to change the battery. I can operate the buttons even with cold weather gloves on. My wife has shot this same set up and she really prefers this sight over my 1 - 6 variable scope. Overall, I don’t have any complains and am happy with this red dot. I recommend this for quick targeting engagements under 200 yards. I set up plates at 150 and 200 yards and can hit them every time with the red dot. I have not tried it with a 3X flip up but am thinking about doing such with 100 to 200-yard targets for head shots.