Title says it all. Looking for someone who has a spare GEN 3 ONLY g22 upper willing to trade for a GEN 4 g19 upper. I bought a gen 3 lower and didn't realize it was a 17/22 frame. I already have a 17, so i want to slap a 22 on it. The gen 4 g19 slide i have has night sights installed, and will come with a threaded barrel along with the oem barrel. If you don't have a gen 3 22, I would be interested in a gen 4 23 slide that I can use on my 19 lower.