Hydroid Inc., Pocasset, Massachusetts, is awarded a $9,537,812 firm-fixed-price modification to previously awarded indefinite-delivery/indefinite-quantity contract N00174-19-D-0010 to exercise Option Year Two for production support of the MK18 Family of Systems – Unmanned Underwater Vehicle Systems. The work will be performed in Pocasset, Massachusetts, and is expected to be completed by April 2022. No additional funds are being obligated at the time of this action. The Naval Surface Warfare Center Indian Head Division, Indian Head, Maryland, is the contracting activity.