According to information published by the U.S. Navy on November 7, 2021, U.S. Navy patrol coastal ships conducted a live-fire exercise with the MK-60 Griffin guided-missile system in the Arabian Gulf to test crew proficiency and system functionality.
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| Cyclone class Patrol (coastal) ship USS Tempest (PC 2), fires a Griffin Missile during a test and proficiency fire in the Persian Gulf (Picture source: U.S. Central Command) |