Orbital ATK received a contract valued at up to $350 million from the U.S. Navy to continue production on the Advanced Anti-Radiation Guided Missile system. The contract is for an initial award of $157 million for the missiles with the option to purchase additional weapons for the balance of $193 million. Produced at the Northridge facility of the Dulles, Va.-based defense and aerospace firm, the guided missile is a supersonic, air-launched weapon that can rapidly engage traditional and advanced land- and sea-launched threats. It is used on the Navy’s Hornet, Super Hornet and Growler aircraft and the Italian Air Force’s Tornado aircraft. Cary Ralston, vice president and general manager of Orbital’s Defense Electronic Systems division, said the guided missile is an affordable system to protect the United States and its allies. “(The missile’s) game-changing technology is vital to the warfighter’s success and equips pilots with the most advanced solution to detect and defeat surface-to-air-threats,” Ralston said in a prepared statement. The company has been developing the guided missile since it received its first development contract in 2003.