I have a gently used Gen 7 Micro Dot from Primary Arms. It was on my slug gun for 1 hunting season (3 days of field use). I zeroed it and shot 2 deer. It has less than 15 rounds under it. It is a great sight and has had zero problems with holding a zero. There are 2 or 3 tiny spots on the rear glass that didn't wipe off with my lens cloth. They may or may not be marks in the coating or on the glass, I just don't know enough about optics to speculate (I'm not even sure what kind of cleaner to try to use). It comes with at least one bikini cover. Marshall send me a few extras and I'll put them in the box if I can find them, but no promises.
The only reason that I'm selling it is that I've decided to upgrade it to an Eotech.
Aimpoint kill flash and black outer rubber cover––––––––––- full trade for both
30 round USGI mags ––––––––––––––- quantity negotiable depending on condition
QD sling adapter for SOPMOD stock ––––––––––––––- partial trade depending on manufacturer
Colt side sling mount (front) –––––––––––––––– trade value $45. That's higher than my .mil price from Brownells