This is a market research Sources Sought/RFI for a Next Generation C-sUAS Missile (NGCM) to defeat Group 2 and Group 3 small unmanned aircraft threats at extended range with rapid launch. The missile must achieve over 16 km range at 6 km altitude, leave the rail in under 5 seconds, be compatible with the Coyote Launcher, and integrate with C-UAS architectures such as IBCS-M and KuRFS. The government targets a production cost of less than $150,000 per missile in quantities of at least 5,000, and requires technology readiness by 4QFY27 with 50 missiles ready for Operational Assessment by 1QFY28. Interested vendors must submit an unclassified Capabilities Brief, limited to 10 pages, covering solution description, technical specifications, security compliance, and support services such as engineering, training, logistics, and cybersecurity. This notice does not constitute a solicitation or commit the government to contract, and all response costs are the responsibility of the interested party.