Ever since the 1300 went out of production, it has been a real PITA to get anything related to Winchester shotguns. Speedfeed used to have a birdshead grip for a 1300 but discontinued it and the only ones to be found are 3-4x the original price around buy/sell ands and ebay. I suck at woodworking but would like to convert a spare walnut stock instead, is anybody providing this service on the site or elsewhere on the net?
Take your stock, this picture and a twelve pack to a woodworking shop with a band saw.