Is the Nuprol Sierra Storm Bravo Tri-Shot Airsoft Shotgun worth buying? Logan Plays tries to answer the question in this video. The Nuprol Sierra Storm Bravo 3 Shot Triple Barrel Pump Action Shotgun is a tri-shot weapon that shoots three bb’s simultaneously. It has a plastic receiver and a standard pump action grip. It features iron sights and a short RIS scope rail for aiming. It comes with three shells that are compatible with Nuprol Shotgun Shells.