Newborn's Blue Barreled, 20 oz. Sausage (also 20 oz. Bulk) Round Rod Gun w/Aluminum Barrel and 18:1 Thrust Ratio. Tired of the standard silver/gray barrel sausage guns? Grab one with a different color barrel. Great when using multiple types of materials on a job so you don't get mixed up. Great to personalize in any way by adding your own stickers and labels.