Raytheon Missiles & Defense, Tucson, Arizona, is awarded a $59,350,949 cost-plus-fixed-fee contract modification to previously awarded contract N00024-22-C-5405 to exercise an option for design agent engineering and technical support for the Phalanx Close-In Weapon System (CIWS), SeaRAM, and Land-based Phalanx Weapon System. Work will be performed in Tucson, Arizona (46%); Yuma, Arizona (15%); El Segundo, California (5%); Louisville, Kentucky (3%); China Lake, California (2%); Forest, Mississippi (1%); Dallas, Texas (1%); Picatinny, New Jersey (1%); and various other locations each under 1% (26% total), and is expected to be completed by January 2024. Foreign Military Sales (FMS) (Korea) funds in the amount of $966,901 (29%); FMS (United Kingdom) funds in the amount of $807,511 (24%); FMS (Saudi Arabia) funds in the amount of $382,418 (12%); FMS (Taiwan) funds in the amount of $375,000 (11%); FMS (Japan) funds in the amount of $315,000 (9%); fiscal 2022 shipbuilding and conversion (Navy) funds in the amount of $299,860 (9%); FMS (Australia) funds in the amount of $100,000 (3%); FMS (New Zealand) funds in the amount of $75,000 (2%); and fiscal 2021 weapons procurement (Navy) funds in the amount of $1,000 (1%) will be obligated at time of award and $1,000 will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington Navy Yard, D.C., is the contracting activity.