I just picked me up a Glock 19 upper (cheap) and need a frame to put it on. I (THINK??) a Glock 23 frame will work for this as well. I really would like a 2nd Gen but will take a 3rd gen.(2nd gen fits my hand better). I can use other parts as well see list at bottom. Thanks for helping a newbe out. Also does anyone know if a person can order a 2nd gen frame for glock. I'm sure they have used frames laying around. Bill Upper parts any or all Lower parts smooth trigger Or?? let me know what ya have.