Mossberg 50700: Mossberg 590SP Tactical features dual extractors, positive steel-to-steel lockup, twin action bars and an anti-jam elevator ensure smooth operation. Top mounted safety provides for ambidextrous operation. The 590 is modular platform so you will have the option of adding tri-railed forends to facilitate accessory lights and lasers, adjustable stocks for rapid adjustment of length of pull in the future if you choose to as well.