I tried it but it took too long to acquire that red dot. Wanted it as a possible HD weapon, but I decided to go back to only Iron night sights instead. I have fired perhaps 300 rounds while mounted on my G19. The original screws seem a little worn but they are standard size and should be easy to replace. I would not use them as they may damage threads on your tapped slide holes, but I am including them to make getting replacements easier.
$350 shipped to established members in the lower 48 only. Willing to defer payment to senior members so that you may ensure this is in good order before sending check or M/O. We can work out transaction details through PM.