The Mariner®, with Mossberg''s exclusive Marinecote™ finish , is ideal for hostile weather environments, coastal environments, boat patrol, etc. The Mariner is the ideal choice when a vehicular-mounted shotgun is subjected to all-season climates, which can induce condensation on weapons. Rigorous testing proves the Marinecote resists corrosion better than stainless steel. This finish is harder than ordinary gunmetal and provides the added bonus of greater resistance to wear and distinctly smoother action.