Lockheed Martin Missiles and Fire Control, Grand Prairie, Texas, was awarded a $145,467,956 firm-fixed-price contract. The award will provide for the modification of an existing contract to procure 130 Army Tactical Missile Systems Block 1A export version T2K unitary guided missile launching assemblies. Work will be performed in Grand Prairie, Texas; Horizon City, Texas; and Lufkin, Texas, with an estimated completion date of Oct. 31, 2013. One bid was solicited, with one bid received. The U.S. Army Contracting Command, Redstone Arsenal, Ala., is the contracting activity .