The Department of Defense, specifically the Naval Air Systems Command (NAVAIR), is seeking to issue a sole source contract modification to MSI Defense Solutions, LLC for Electronic Advanced Ground Launcher (EAGLS) Counter-Uncrewed Aerial System (C-UAS) testing and associated support services. The procurement includes initial spares, support equipment, engineering and technical support, maintenance support, and Field Service Representative (FSR) system support, all of which are critical for the effective operation and maintenance of the EAGLS C-UAS. As the sole designer and manufacturer of the EAGLS system, MSI possesses the unique expertise and technical data necessary to fulfill the government's requirements efficiently. Interested parties may express their interest and capabilities by contacting Joseph Perriello at joseph.c.perriello.civ@us.navy.mil, although the government is not obligated to solicit competitive proposals or award a contract based on this notice.