The Department of Defense, specifically the Naval Sea Systems Command (NAVSEA), is seeking to award a contract for the Tactical Control System (TCS) to General Dynamics Mission Systems (GDMS) located in Fairfax, Virginia. The contract aims to deliver the AN/BYG-1 Technology Insertion 2024 production build by the fourth quarter of fiscal year 2026, which is crucial for the integration and installation of the Submarine Warfare Federated Tactical System on submarine platforms. This procurement is significant as it supports the U.S. Navy's submarine combat control capabilities and includes provisions for future combat systems delivery to international partners through Foreign Military Sales. Interested parties may express their interest and capability within 15 days of the publication of this notice; however, this is not a request for competitive proposals, and all submissions will be at the submitter's expense. For further inquiries, contact Steven Troiano at 202-781-0592 or via email at Steven.j.troiano.civ@us.navy.mil.