Primary Arms MicroDot MD-09 with QD 1/3cw Riser. comes with rubber cover, no box/paperwork.
Purchased Nov 2012. Mounted on a .22LR Colt/Umarex for 500 rounds (roughly 3 hours total runtime).
No problems to report. Rifle was traded, this red dot was not part of the deal.
Slight wear on brightness control knob (second picture).
$90.00 shipped USPS (w/$100 insurance) to any ConUS address.
Thanks for looking.