For over 90% of the time, my CCW is a Glock 19 carried in an older Blade Tec UCH kydex IWB "Tuckable" type holster.
For those rare times I just can not be armed, it's a Kahr PM9 in a cheap, yet effective Uncle Mikes pocket holster.
I really want to warm up to my S&W 642 as a pocket carry gun, but always end up grabbing the PM9, when wanting a pocket carry gun.