The Department of Defense, through the Naval Air Systems Command (NAVAIR), intends to negotiate a modification to contract N0001919C0083 for the procurement of AGR5 parts and assemblies, as well as related services for the Tomahawk Land Attack Missile system. This procurement includes the disassembly of AGR4 units, assembly and testing of AGR5 units, modifications to Automated Test Equipment, and acceptance testing, all crucial for supporting the Low Rate Initial Production (LRIP) of the AGR5 system. Raytheon Company, the sole developer and manufacturer of the Tomahawk missile, is the only source capable of fulfilling these requirements due to its exclusive possession of the necessary technical data and expertise. Interested parties may submit responses for consideration, and inquiries can be directed to Zacerry Herbert or Diana K. Harritt via their provided email addresses.