The Mark V SOC (Special Operations Craft) is a small marine security/patrol/transport boat manufactured by Halter Marine Inc (Gulfport, Mississippi). The Mark V is one of the newest additions to the United States Naval Special Warfare Command. The primary mission of the Mark V is medium range insertion and extraction platform for Special Operations Forces (primarily SEAL combat swimmers) in a low to medium threat environment. The secondary mission is limited Coastal Patrol and Interdiction, specifically limited duration patrol and low to medium threat coastal interdiction. The typical Mark V SOC mission duration is 12 hours.