For the ultimate in shooting flexibility, the 590S Series cycles 1.75, 2.75 or 3 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. Features standard Mossberg Pump-Action Features: Dual extractors, twin action bars, positive steel-to-steel lockup, and anti-jam elevator provide smooth operation. Other features include top-mounted ambidextrous safety, matte blue metal finish, magazine clean-out tube with cap and a logo-engraved receiver.