Works well but took some adjustment - ADE Advanced Optics RD3-006x 1x Reflex Green Dot Sight w/D1 Rear Optic Mount Plate

The optic arrived quickly and everything was packaged nicely. The dot was bright and clear right out of the box. It took me a little time to get used to the blue dot compared to other colors I've used in the past, but after a few range sessions I actually started preferring it.

The controls are easy to operate and the sight has held zero consistently. Overall, a good purchase and worth considering if you want something different from the typical red dot.