The Department of Defense, through the Naval Air Systems Command (NAVAIR), intends to solicit a proposal from Lockheed Martin for the procurement of Acalis 3U VPX COTS Chips, which are critical components for the F/A-18E/F Infrared Search and Track (IRST) Processor Weapons Replaceable Assembly (WRA). This procurement is being pursued as a sole source modification under the authority of 10 USC 2304 (C)(1), indicating that only one responsible source can meet the agency's requirements, as Lockheed Martin originally procured these parts. Interested parties may submit technical capability statements to demonstrate their ability to produce the required products, although the decision to pursue a competitive procurement remains at the discretion of the United States Government. For further inquiries, interested parties can contact Nicole Yeager at nicole.e.yeager.civ@us.navy.mil or Jessica Myers at jessica.v.myers.civ@us.navy.mil.