So I have been looking for a Gen 2 G19 for months. I finally found one one Sunday. It was listed here in the classifieds. Once I got home I took out the horrid NY1 trigger spring and put the original trigger spring back in. This is where it got scary. I noticed that 50% of the time I dry fired it the trigger would pull as it should and the firing pin would fall but the other 50% of the time the trigger would pull but the firing pin would not fall. I took it to a local Glock armorer here in Orlando and I explained the problem He started to dry fire it and his eyes got pretty big when he realized the gun was slam firing when he racked the slide. Not only that, but he said it would go full auto if I were to try and shoot it. He took it apart and tried replacing everything. Long story short, no matter what he replaced the problem continued. He said this was the first Glock in 11 years of working in the store that he has been unable to diagnose the problem. He flat out said the gun was dangerous and that it needed to go back to Glock.He didn't even feel comfortable having it in the store. I'm pretty pissed that the member here on Glocktalk would knowingly trade me a dangerous gun. I am so thankful I didn't load this thing in my apartment. I left a message with Glock and I am praying they will fix it without costing me a fortune.