Raytheon Missiles and Defense, Marlborough, Massachusetts, is awarded a $76,390,495 firm-fixed-price, cost-plus-fixed-fee, cost-no-fee modification to previously-awarded contract N00024-19-C-5112 for the production of the MK 99 Fire Control Systems (FCS), associated hardware, and engineering support. This procurement provides MK 99 FCS units in support of DDG-51 class ships and the Missile Defense Agency, as well as FCS hardware for the government of Australia under the Foreign Military Sales (FMS) program. Work will be performed in Andover, Massachusetts (84%); Marlborough, Massachusetts (10%); Chesapeake, Virginia (5%); and Burlington, Massachusetts (1%), and is expected to be completed by December 2025. Fiscal 2022 shipbuilding and conversion (Navy) funds in the amount of $44,602,762 (59%); fiscal 2022 defense-wide procurement funds in the amount of $28,146,836 (37%); and FMS (Australia) funds in the amount of $3,329,467 (4%), will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command Washington, D.C., is the contracting activity.