Spandau Arms S2 Full Size 20 Gauge Semi-Auto 3" 3+1 24" Overall Mossy Oak Bottomland Vent Rib Barrel, Drilled & Tapped Receiver, Fixed Synthetic Stock The Spandau S2 Shotgun is a lightweight, high-performance firearm designed for hunters and shooting enthusiasts. It features a reliable Inertia operating system for smooth cycling; customizable Benelli/Mobil choke tube system; fiber optic front sight; oversized controls; enhanced loading gate and compatibility with Benelli M2 accessories. Includes owner's manual, Choke Tube kit and wrench, stock drop/cast spacer kit.