The Mossberg 590 Tactical is the prefect choice for your personal and home defense needs. It features dual extractors, positive steel-to-steel lockup, twin action bars, and an anti-jam elevator ensure smooth operation. A top mounted safety provides for ambidextrous operation. The Mariner model provides a modern, state of the art design for the most serious and potentially prolonged defense situations. It features a durable stainless steel finish, black synthetic stock, and a cylinder bore choke.