The Department of Defense, specifically the U.S. Army Contracting Command - Rock Island, is seeking sources for the production and delivery of the F562 Signal Cartridge MK4-3 (flame/hot) with metal pallet, intended for use by the United States Air Force and Navy in bombing missions from Fiscal Years 2027 to 2031. The procurement involves a Firm Fixed Price (FFP) contract with five one-year ordering periods, requiring an estimated production quantity of 30,000-40,000 cartridges annually, along with First Article Test (FAT) requirements. These signal cartridges, which utilize red phosphorus to create a visible signal of white smoke and flame upon impact, are critical for marking the impact location of practice bombs during military exercises. Interested vendors must respond by 12:00 PM CT on April 25, 2025, providing necessary company information and capabilities to Jason Koski at jason.o.koski.civ@army.mil or Bridget Kramer at bridget.l.kramer.civ@army.mil.