I recently picked up this glock 17L with what looks like a factory ported barrel and was looking for some info on it. I'm not sure if it is a gen 1 or 2 gun but has a db serial number. It has definitely seen better days as far as wear but has a incredible trigger pull. I have read that there were some issues with the factory ported barrels but not quite sure. Any info you guys have would be greatly appreciated.