My 629 wears those grips and has since my first range trip with the stock grips......smile. They do wonders for one's confidence and truly do soften the blow a bunch.

As to where to get them.....I tried several different sites (a few years back) and the only place that I found to make such a purchase was directly from S&W. That might have now changed, but I remember them being of reasonable cost, which surprised me a bit (being directly from the manufacturer and all).

Good hunting............