Raytheon Missiles and Defense, Tucson, Arizona, is awarded a $263,717,654 modification (P00010) to a previously awarded fixed-price incentive (firm-target) contract (N0001921C0723). This modification exercises options for the production and delivery of AIM-9X missile production Lot 23 requirements to include: 571 AIM-9X Block II all up round tactical missiles (91: Navy, 257: Air Force, 223: Foreign Military Sales (FMS) customers); 48 Block II captive air training missiles (38: Navy, 10: Air Force); 185 all-up-round containers (62: Navy, 67: Air Force, 56: FMS customers); 11 spare advanced optical target detectors (5: Navy, 6: Air Force); eight spare advanced optical target detector containers (2: Navy, 6: Air Force); 31 spare Block II guidance units (live battery) (21: Navy, 10: Air Force); 54 spare Block II captive air training missile guidance units (inert battery) (41: Navy, 13: Air Force); two Block I tactical sectionalization kits for the Air Force; seven Block II tactical sectionalization kits (4: Navy, 2: Air Force, 1: FMS customer); 10 Block II captive air training missile anti-tank missile sectionalization kits (9: Navy, 1: FMS customer); one support equipment for FMS customer; three other lot spare assets for the Navy, Air Force, and one FMS customer, as well as non-recurring engineering associated with Systems Improvement Program III transition to production activities. Work will be performed in North Logan, Utah (28.09%); Tucson, Arizona (21.64%); Linthicum Heights, Maryland (18.88%); Minneapolis, Minnesota (11.46%); Marietta, California (8.42%); Saint Albans, Vermont (7.75%); Ann Arbor, Michigan (1.44%); Warrington, Pennsylvania (1.22%); and various locations outside the continental U.S. (1.1%), and is expected to be completed in August 2026. Fiscal 2021 weapons procurement (Navy) funds in the amount of $3,413,162; fiscal 2021 missile procurement (Air Force) funds in the amount of $139,381; fiscal 2022 weapons procurement (Navy) funds in the amount of $2,524,580; fiscal 2022 research, development, test and evaluation (Air Force) funds in the amount of $548,782; fiscal 2022 research, development, test and evaluation (Navy) funds in the amount of $456,289; fiscal 2022 missile procurement (Air Force) funds in the amount of $190,841; fiscal 2023 missile procurement (Air Force) funds in the amount of $98,450,714; fiscal 2023 weapons procurement (Navy) funds in the amount of $55,416,050; fiscal 2023 operations and maintenance (Navy) funds in the amount of $2,485,155; and FMS customer funds in the amount of $100,092,700 will be obligated at the time of award, of which $7,042,769 will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.