It's a good red dot, but can not withstand strong recoil. - UTG Pro 3.8in ITA Red/Green Circle Dot Sight w/Integral QD Mount

It's quite heavy and it's got a thick tube so the view gets even smaller. The reticle is bright enough during the day and not too bright at night. The circle dot is perfect for getting your eyes to quickly find the reticle. It held perfect zero on all my rifles including my shotgun. That is, until I used 1500fps slugs. FYI, it was happily working with 1350fps loads and holding zero. The recoil was so much fun that it turned the reticle into a big solid dot and became permanent. Still held zero, relatively. Anyway it's on a shotgun so it's not a total loss, and 12 gauge has a big shot pattern.