I have a G19 withi XS Big Dot night sights,, and the NP3 finish done by robar... as far as 9mm pistols go for CCW I dont think it gets much better than a G19.
Cheaper practice ammo...
Longer sight radius...
Unbeatable reliability and durability...
Perfect size for CCW... large enough for duty size, small enough for CCW...
I compete with mine and have put it through its paces, and its never ever failed me. I've always liked 9mm better than .40 cal... .40 cal has a lOT of muzzle flip as you know... and im sure as you know gunfights are won by placing FAST, MULTIPLE shots on target before he puts them on you... so there I belive the 9mm wins hands down.
One guy put it this way... "The Glock 19 is Gaston Glock's little piece of 9mm perfection."
GlockTalk.com has a whole forum dedicated to just the G19.