Lockheed Martin Corp., Grand Prairie, Texas, was awarded an Other Transaction Authority agreement with a ceiling of $311,979,039 for Stinger missile upgrades and replacement. Work will be performed in Grand Prairie, Texas, with an estimated completion date of June 12, 2028. Fiscal 2023 research, development, test and evaluation, Army funds in the amount of $26,129,389 were obligated at the time of the award. Army Contracting Command, Redstone Arsenal, Alabama, is the contracting activity (W9124-P-23-900001).