The Department of Defense, through the Naval Air Systems Command (NAVAIR), intends to award sole source Firm Fixed Price contracts to Northrop Grumman Defense Systems (NGDS) for the Low Rate Initial Production (LRIP) of Lots 5 and 6 of the AGM-88G Advanced Anti-Radiation Guided Missile – Extended Range (AARGM-ER). This procurement encompasses all tasks necessary for the manufacturing, assembly, testing, and delivery of AARGM-ER All-Up Rounds, Captive Air Training Missiles, and associated support equipment, as well as program management and logistics support. The AARGM-ER is critical for enhancing the capabilities of the United States Navy and Air Force, as well as allied forces, in countering advanced threats. Interested parties may contact Hayley M. Graham or Kathryn L. Volpe for further information, although this notice does not constitute a request for competitive proposals, and no commitments have been made by the Government regarding contract awards.