Bought a slightly used Glock 19 yesterday and took it out today with some pretty good results. Serial # says it was born in May 07 so it is pretty new and didn't look like it had been shot much. I shot a 100 box of WWB and a few hyrdashok's. I don't think it was lubed all that well when I took it out and after about 100 rounds I had one round jam (looked like it nose-dived into the ramp?). Guy at the range said WWB are the only rounds he has seen cause the 9mm Glocks a problem...he claims they never jam heh. I took it home and stripped it down and cleaned/lubed it real good. I don't have any doubts it would go bang if I needed it to. I shot it real well too....25-50 feet were all the pleasure with it.