I did some research and here is what I found out;
I got the belt buckle/holster from Don Appleton at www.exoticstainlesssteel.com in Alaska. He makes the best buckles around.
This Keltec holster is not listed on his website, but you can call or email him since it is a prototpe.
Here in Florida I always wear my shirt out and it goes right over the buckle. You can shift your belt around left or right if you want to wear it at a different location. You will need to supply your own belt but the buckle is sewn leather over stainless.