RNT 40th Anniversary Short Barrel Duck Call (Black) Snotty, whiney, but not obnoxiously loud. Marred as the Originals little stepbrother, the Short Barrel has become the nastiest, gnarliest, plain out bad to the bone call ever packed in a 4.25" duck calling machine. Intricately designed toneboard along with its shorter barrel makes for an easier blowing call as well as allowing the caller to come down softer on the call without sacrificing a meaty ducky sound on top.