The Department of Defense (DOD) is seeking proposals for the development of a low-cost proximity sensor aimed at enhancing counter-unmanned aerial systems (C-UAS) munitions. The objective is to create a sensor that effectively detects and engages slow UAS targets as well as faster aerial threats, including cruise missiles, while adhering to specific performance criteria such as a cost under $10,000 and a detection range exceeding 30 meters. This initiative is critical for improving battlefield capabilities against evolving aerial threats, and the project is structured as a Direct-to-Phase-II (D2P2) SBIR opportunity, with no Phase I awards being made. Proposals are due by May 21, 2025, and interested parties can find more information and submit their applications through the DOD SBIR website.