I'm guessing there is a lemon on every tree - in the older Kahr batch there were plenty lemons, but Kahr managed to fix most problems. The new batch, however, seems to be gaining more respect - it is still a picky gun, don't use reloads, for sure. After the 200 round break-in period, the new guns love the high power rounds, it was made for this purpose. I recently bought one of the new batch, a MK9 Elite 2003 with night sights... a work of art; it worked out of the box perfectly. The only complaint I have is that Kahr should have used the stainless steel guide rod, instead of the plastic one - I have just changed mine. Oh, yes, I do have another complaint, it messes up the center of my targets pretty badly.