The Department of Defense, specifically the Marine Corps, intends to negotiate a sole-source contract with Northrop Grumman Systems Corporation for the procurement of 274 units of the XM914E1 30mm x 113mm Chain Guns, along with training, spares, and associated engineering services. This system is critical for the Ground Based Air Defense (GBAD) program and is the only known solution that meets the unique requirements of the USMC, including compatibility with the MADIS Inc. 1 Command & Control software. The anticipated contract will be a hybrid Cost-Plus-Fixed Fee/Firm-Fixed-Price agreement with a five-year performance period, and interested parties may submit their interest and capability statements by 1000 local time on April 17, 2025, to the primary contacts, Justin McPherson and Stasia Baker, via their provided emails.