Guys, let's not turn this into yet another CC Vs. OC thread. Try and just answer the mans question and use the search function to find one of the many other threads debating the merits of open verses concealed carry.
Rhartwell, I carry a S&W 469 in a Bianchi 19L holster. It does have the thumb break strap for retention, but with a bit of training, the break is a perfectly natural part of the draw. Because your gun has been out of production for awhile, I don't think you'll have a ton of luck finding what you want.
Fwiw, I OC'd this gun yesterday as part of a Halloween costume. Most people didn't notice. In fact, most people don't notice the majority of tikes I've OC'd. Good luck in your search.