What kind of holster would you like? Right hand vs. left hand, Kydex, nylon, leather, etc.? I'm asking because I have a nice Safariland SSIII - 070 right handed duty holster with the black, basketweave finish and level 3 security. It was made for the Smith & Wesson 4506, but may likely work well with your 645. I've advertised this holster on this forum in the past. $35.00 shipped in CONUS. let me know if you're interested.