My main carry gun is a Glock 19. I also have a Glock 23 that I carry. The beauty part is, same holster(s) for both guns!
Holsters: G-Code IWB or Comp-Tac CTAC IWB. Ammo: 9mm Federal EFMJ 124 gr. +P. .40 S&W is loaded with DRT (Dead Right There) at the moment.