"B-Stock" refers to a new instrument that came in from the factory with minor surface blemishes. Sometimes these will be a smudge in the finish, a pimple in the carbon fiber, some slight oxidation in the finish, or a small scratch. None of these blemishes affect the playability, but they are merely cosmetic issues that prevent us from sending these instruments to our dealers.
All "B-Stock" units come with the same warranty as our standard instruments.