Shot my Gen3 19c today for the first time. 300 rounds and no issues of any kind. The front sight wasn't dirty at all as reported by so many people that have never actually shot one. It's a keeper as it came from Glock. I'm definitely going back to my stock sights on my G22 since I never really warmed up to the XS Big Dot set up. Next will be a G26, 27, or 33 an then I'm done.