Gunny;
Charles is right...there are a lot of companies making IWB's that will work with LCR's.
If you search the internet for "LCR holster" you'll probably get several good hits.
Galco, DeSantis, Fobus, AlienGear, etc, etc.
My son has an LCR and I have an SP101 and I got us both the same IWB holster from High Noon.
The holsters I bought are a discontinued model (I think it was called the Hidden Ally).
However, High Noon makes several types of IWB holsters.
Just one suggestion.