I am looking for a holster to fit my S&W model 457. I would prefer a belt holster which can be used for either OC or CC. Also want some type of retention device, such as thumb break. Prefer leather, but other materials would be fine also. Anyone have any suggestions, or links to manufacturers. I have looked around on the net quite a bit, but most sites don't seem to list my my 457. I see quite a few which might work, such as those for other S&W models, and some listed for Glocks, but I would rather be sure before I order.