The government is conducting Sources Sought market research to identify capable sources for on-site Physical Access Control System (PACS) troubleshooting, repair, installation, and integration services supporting AFRL Space Warfare (RJ) and Information & Spectrum Warfare (RF) Directorates at Kirtland AFB, NM. The anticipated acquisition is a five-year Blanket Purchase Agreement (BPA) with a period of performance from 2026 to 2031, using FAR Parts 13 and 12. Contractors must maintain an active office, branch, or locally based OEM-certified technician cadre within 60 miles of the Albuquerque, NM metropolitan area and provide 24/7/365 on-site response at Kirtland AFB. Required response times are 4 hours for Priority 1 emergencies, 8 hours for Priority 2 urgent requests, and 24 hours for Priority 3 routine requests, with specified compliance thresholds. Interested firms must be SAM.gov registered and submit capability statements addressing their PACS experience, ability to meet the geographic and response-time standard, quality management, and commerciality questions; this notice is not a solicitation and no contract is guaranteed.