This is a sources sought notice for Weapons Systems Integration and Software Support Services (WSISS) to support multiple aircraft platforms, with the primary place of performance being China Lake, California. The work involves a broad scope including weapons and software integration, technical services, and aircraft modifications. The notice seeks capability statements to determine if small business set-aside opportunities exist for this follow-on requirement, which is currently performed under a contract expiring July 31, 2028. The anticipated contract requires a Top Secret security classification and a Cyber Maturity Model Certification (CMMC) Level 2. Interested businesses must submit a capabilities statement package via email by a specified deadline.