Dual gas-vent system, vent rib Waterfowl barrel, quick-empty magazine release button for easy unloading, drilled and tapped Pro-Series Waterfowl engraved receiver. HiViz fiber optic front sight. AccuSet choke tubes (Full, Modified, Improved Cylinder). Synthetic stock with Stock Drop System that provides drop-at-comb adjustment shims for a customizable fit.