So I'm the second owner of a Stock II that I got nearly unfired (and it truly looked it, plus the gun was imported less than a year ago)
Previous owner claimed less than 50 rounds through it.
I did a thorough inspection on it and took it out today, on the second mag I had a failure to eject and the damn thing was locked up tight. I tapped the slide stop out and found this:
Slide seems OK
Ammo was Perfecta 115gr, no sign of damage or over pressur