Tucson-based Raytheon Missile Systems has won a $535 million contract for production of AIM-120 Advanced Medium-Range Air-to-Air Missiles (AMRAAMs), with about half of the production for foreign sales to Oman and Saudi Arabia.

The sole-source Air Force contract, announced today by the Pentagon, will run through 2015. Fifty-one percent of the work is for sales of the AIM-120C-7 version of the AMRAAM for Oman and Saudi Arabia. The AIM-120C-7 is the latest version available for foreign sales. The number of missiles involved was not disclosed.

The AMRAAM, made by Raytheon in Tucson, is the main long-range air combat weapon used by the Navy and the Air Force, and 36 nations have procured versions of the missile.