Encore Pistol Barrel Only Barrels for the Encore pistol can be changed in seconds by removing the forend and tapping out the barrel/frame hinge pin. Specifications: Gauge/Caliber: 460 S&W Length: 15 in Model: Encore Pistol Sights: Front and Rear Sight Bore-Rifled: Rifled Finish: Blue Encore Pistol Barrel Only.