I like Sig firearms a lot, and I've no doubt the P365 will be a best seller for Sig. I'm especially disappointed when I see quality control issues like this one because I expect a lot from a "Sig" product. I've no doubt it was indeed a "bad batch" and something like this can happen to anything that's mass produced. Disappointing yes, but I'm sure Sig will solve the issue.
"After shooting 1000 rounds.....250 round range sessions.....countless dry fire reps..... the *firing pin broke during dryfire*."