Gonna pull the trigger and get a new 19 this week. I love my 19 Gen 2 w/ the Robar grip reduction as a CCW but want something to shoot more. Also, I'm gonna transition the new gun as my primary weapon for work and retire the other one as strictly an off duty/back up weapon. There is a large LE supplier a few my miles from my home so finding one in stock with Trijicon NS's the way I want it will not be an issue. I'm seriously leaning toward a Gen 3 because I carry IWB while off-duty and heard a lot of people compalining about the new grip design on the Gen 4 being too abrasive. ie; Irratating their skin and wearing through their clothes. Another part of me is saying to go with the new design of the Gen 4 just because I trust Glock making improvements. I recently held a 19 Gen 4 and it felt nice in my hand. But if it really is uncomfortable to carry IWB?? That will me a major drawback for me. I had a 17 Gen 3 for several years and recently sold it to a guy at work so I am familar with that design and like it a lot. So unless something really gives while i'm at the gun store.. Most likely a Gen 3 w/ Trijicon's. What do you guys think?