I have a used Bianchi Thumb-Break #5 BHL, marked "S&W .44" for sale. Bianchi's website says it fits K Frame models such as the models 66 and the 19. The holster is suede lined and has an integral thumb snap and a closed muzzle. I was using it for a S&W 6" Model 617 but I sold the gun and the buyer did not need the holster. $35 shipped.