Maybe this is a stuipid question, but will the 4th generation Glock replace the 3rd generation or will Glock stop making the 3rd generation? If so when? I've been reading this forum for a weeks and I have really enjoyed it. I'm sorry it took me so long to find it. I currently own a 23 that I bought last year and a 26 that I bought a few weeks ago. Now I'm trying to decide between a 19 and a 21. I can't sleep at night trying to figure this one out .