[Uncle Malice]

That's a valid point. HK does use some MIM, but it's always been done well in my experience.

It's definitely not a wide-spread issue - but it has certainly been reported in quite a few locations. I'm sure this particular part was just flawed - as even my G26 has way more rounds and dry fires on it, let alone my Gen 4 19. I guess the biggest complaint I have is Glock refusing to send a replacement.

I don't generally use snap caps with strikers because it's kind of a pain. But in this case, I'm not sure it would have helped. I can understand when the tips break... or the breach face breaks, but I don't think snap caps would have helped with the tooth on the rear.

I'll use snap caps in a hammer-fired gun if I'm just practicing double-action pulls.