You might want to check with Brock over at Bluegrass holsters and see if he can get a mold in for hk45
He made me one of his ghost IWB's for my HK USP-CT
It s very, very nice, fantastic quality and comfort at a good price.
Here is a thread with the pics of the one he made me
http://www.defensivecarry.com/vbulle...tml#post704405