Selected by the U.S. armed forces after passing the rigors of milspec qualification, the 590A1 is the duty weapon of choice for military and law enforcement agencies worldwide. The 590A1 Mariner features MilSpec 3443e construction,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. A corrosion resistant Marinecote® protects the action and barrel from the harshest environments. New for 2016, a magazine extension increases capacity of the 590A1 to 7-Shots.