The Army is seeking sources capable of supplying Dillon Aero M134D series 7.62mm rotary machine gun systems, including mounting systems for air, water, and ground platforms, along with parts, accessories, support equipment, installation, and training. Responses are due within 20 days of the notice, and no budget amount is specified. Performance of services may occur within and outside the continental United States. Interested parties must provide detailed capability descriptions, platform compatibility, airworthiness release information, and rough pricing data. This is a market research notice only, not a solicitation, and may lead to a small business set-aside or full competition.