I picked up a Primary Arms Micro Dot With Fixed Base MD-FBGII a couple months ago. I put it on my Mossy 500 and have only shot at the range a couple of times, but so far I really like the sight. It's held its zero through 30+ rounds. It has 11 brightness settings going from off (0) to really frickin bright (11) The first 3-4 aren't really visible in full daylight. Price is very reasonable at 80-90 dollars