L3Harris Technologies Integrated Systems L.P. (D.B.A.: Aeromet), Tulsa, OK is being awarded an indefinite-delivery/indefinite-quantity contract with a maximum amount of $499,573,000.00. Under this follow-on contract, the contractor will provide support for the Missile Defense Agency Flight Test Airborne Sensors (ABS) program. These efforts will continue operations and sustainment (O&S) of the flight test ABS aircraft and sensor equipment, mission planning and flight test execution, and Improvement and Modernization (I&M) efforts. The work will be performed in Tulsa, Oklahoma. One initial task order in the amount of $22,175,032.00 is being issued. The ordering period is from September 15, 2026 through September 14, 2036. This contract was competitively procured via publication on the Governmentwide Point of Entry website with one proposal received. Fiscal 2026 Research, Development, Test and Evaluation funds in the amount of $5,000,000 are being obligated on this award. The Missile Defense Agency, Huntsville, Alabama, is the contracting activity (HQ0855-26-D-E001). Contracting office point of contact: MDA Contracting Officer, mda.redstone.dtk.mbx.abs4@mail.mil Approved for Public Release 26-MDA-12370 (6 Jul 26)