Sig Sauer P228, 9mm with Surefire M2 Centurion Sig marketing says they have "to-hell-and-back-reliability." I can assure you that this 9mm has been to 'hell' and did just fine.
I also carry this Sig P228 most of the time in a Serpa holster. Mine has seen two new barrels and two new complete spring sets. This gun has never, and I mean NEVER failed to run without one single hiccup. Nice choice.