Lockheed Martin Corp., Orlando, Fla., was awarded on June 1 a $48,766,679 firm-fixed-price contract.  The award will provide for the six-month extension of logistical support for the AH-64 Apache modernized and legacy target acquisition designation sight assembly and Pilot Night Vision Sensor Assembly System.  Work will be performed in Orlando, Fla., with an estimated completion date of Dec. 31, 2011.  One bid was solicited, with one bid received.  U.S. Army Contracting Command, Redstone Arsenal, Ala., is the contracting activity (W58RGZ-07-C-0058).