How about entering into an agreement to make holsters and belts for them?  Put a coupon inside RIA package with discount toward purchase.  Get's them more visibility with there name on a high quality, related product; and your name on holster gets more recognition for your brand.  Might want to cast a buckle with logo to go with belt.  Pretty nice rig I think and advantageous for both parties.  Very synergistic. 

J