I recently found a search tool on the front page of the Redbridge website that lets you enter your zip code in order to show you where the beer can be found near you. I put in my current zip code (27517) and learned that Redbridge is served at two locations nearby:
Dead Mule Club
303 W. Franklin St.
He’s Not Here
112 ½ W. Franklin St.
I read on another website that Bub O’Malley’s at 157 E. Rosemary St. also serves gluten free beer.
I have not contacted any of these places yet, but they seem worth checking out. The Redbridge retail locator lets you find which grocery stores carry the beer as well.