The U.S. Army seeks potential manufacturers and suppliers for the AN/PVS-4 Night Vision Sight Carrying Case to support sustainment. This is a sources sought notice for planning and market research only, not a formal solicitation. Interested and capable suppliers must contact the government and submit their capability information before March 10, 2026. The government possesses the technical data package, which is available for conditional release, and alternate designs require approval. Responses must include detailed company and capability documentation.