CrossBreed
Comp-Tac
KHolster
All of those spread out the weight and add very little thickness to the thing you shove in your beltline.
Cheap holsters tend to need replacing over and over, while a good holster will last for years (if not decades, or a lifetime).
Personally, I pack in a SuperTuck from CrossBreed - search my posts for pictures. As I'm packing a PPS, you should have little trouble picturing your Kahr in the same setup, they're about the same size and width.