I would have to say my favorite duty gun is my Smith and Wesson M&P 2.0 loaded with 147 grain Federal HST, and my Smith and Wesson 642 loaded with 135 grain Speer Gold Dots for my back up.
PHLSTER Holster
I think this holster from Phlster Holsters is of good quality, but is not the most economical. Pay once, cry once.
City Special Revolver Holster - PHLSTER Kydex Holsters and Medical Accessories