I have an Uncle Mike's Size 12 IWB that I originally got for my KT P-11. It's a trifle large for the TCP but the grip protrudes enough from the holster to pull it out easily. A slightly smaller one might be better, however. I got my 738 for something to drop in a pocket and got a Blackhawk! pocket holster for it at Wallyworld. Made in the good ol' USA, too.