The Minx's are good little guns, and for the size, I think a pocket holster would be pretty good.
Another (similar) option would be the sticky holster- very similar to Remoras. They make one sized for the Bobcat, which is the same size as your Minx. They are designed to be IWB holsters held by friction between the body and the belt/waistline of the pants. I use one for my J-frame, and it goes in my pocket as easily as it does my britches. That's what I would suggest for the Minx.