Certainly not a widely available style. I've had a commercial example before, but it was many years ago and I can't name one off the top of my head. Hmmm.... (as he peruses the BJCP guidelines).... ah, yes... apparently there's only two good examples, both made in Germany... Paulaner Roggen (formerly Thurn und Taxis, no longer imported into the US), and Bürgerbräu Wolznacher Roggenbier. Good luck finding those in the USA.