Well, if you've got the scratch for a MK 23, you can certainly afford some good gunleather! I've used lots of different holsters. Kydex, leather, fabric, etc. But I love some good classy gunleather. Try Mitch Rosen.
http://www.mitchrosen.com
He makes quality stuff. And If you buy your pants 10 sizes larger, you could probably carry it concealed IWB!
Edited because:
is an instrument. "Voila" on the other hand.....lol, just messing with ya....