If you are looking for an IWB, I would recommend Concealment Solutions - Custom made concealment holsters, although there are many other great holster makers out there. You can talk to the owner/craftsman personally to discuss your specific needs. They do custom work at a very reasonable price (RMR, lasers, lights)
I have a Black Mamba CE, and love it (although I don't have an RMR on my gun).
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