I know Glock has had some problems with Gen3 G19's ejecting into the shooters face. I have read a bunch about it a couple months back. I was wondering if that now has been resolved to everyone's satisfication? I purchased a brand new Gen3 G19 for my son(as a gift) in December 2012(serial # UAW-____), that has NOT been fired yet. Obviously, shooting it ALOT will tell the tale, but thought that the fact it was made in Dec '12, might mean it's in a range of guns where the problem has been finally solved. Any info appreciated.