Actually just stock sights on my G19 lol. I'll actually be taking a Travis Haley handgun course soon so I'm hoping to learn loads from it. Guess I'll hold off on any Zev/Salient/etc. upgrades until I finish that class. Maybe the G34 MOS will be available by then lol.
I was actually recommended this forum by a friend, and I didn't realize it was geared towards IDPA/USPSA shooting. Maybe in the future I'll have enough time to try out for those, but I'm not too concerned with keeping my gun under certain competition restrictions for that reason. My G19 is my carry handgun, but it'd be nice to have some modifications if they'll improve the gun. The G34 idea is completely for fun on the range and maybe 3Gun if I try that later this year.