Lockheed Martin, L3Harris and the U.S. Army have completed a Direct Connect Transition Test for the PrSM Increment 4 offering, removing a major technical barrier ahead of flight testing planned for the fall. The test validated the booster-to-ramjet propulsion transition inside L3Harris’s high-speed air-breathing propulsion facility in Orange, Virginia.
The company said the Increment 4 configuration is designed to extend Precision Strike Missile range beyond 1,000 km while remaining compatible with existing HIMARS and M270 launchers. The result marks a key propulsion milestone for the program and a further step in the Army’s long-range precision fires roadmap.
PrSM is the Army’s next-generation surface-to-surface missile family intended to replace ATACMS. Increment 2 completed its first flight test in March 2026, while Increment 4 is aimed at a significantly longer-range profile through advanced air-breathing propulsion.