Mossberg 590S Optic-Ready Black Anodized 12 Gauge 3in Pump Shotgun - 18.5in - For the ultimate in shooting flexibility, the all-new 590S Series cycles 1.75in, 2.75in, or 3in shells. Pick one shotshell length for specific shooting needs, or simultaneously load any combination of those shell lengths. The choice is yours with the 590S. Cycles 1.75in, 2.75in or 3in Shells Interchangeably.; No Need for Mini Shell Adaptor.; 5+1, 6+1, 9+1 Capacity; Redesigned Elevator, Bolt Slide and a new Energy-Absorbing Bumper.; Dual Extractors; Twin Action Bars; Steel-to-Steel Lockup; Ambidextrous Safety; Optic-Ready; Magazine Clean-Out Tube with Cap; Logo-Engraved Receiver; Corncob Forend;