Lockheed Martin HIMARS FLEX

History

HIMARS FLEX was first unveiled on 16 June 2026 at Eurosatory in Paris by Lockheed Martin as a modular evolution of the M142 HIMARS. The system builds on the HIMARS architecture, which has accumulated more than 2.5 million operating hours worldwide. On 9 October 2026, Lockheed Martin emphasized the system's doubled firepower in a public video and unveiled PAC-3 Edge, its next-generation interceptor candidate for the U.S. Army's Future Interceptor program, specifically naming HIMARS FLEX among the platforms intended for integration. The system remains a developmental platform; Lockheed Martin has outlined PAC-3, IFPC, and future interceptor integration, but not all configurations are yet operationally fielded.

Design

HIMARS FLEX utilizes the FLEXFires technology ecosystem, a modular architecture allowing operators to configure the platform as either a single-pod baseline equivalent to the original HIMARS or a dual-pod “FLEX” loadout delivering double the offensive firepower. The system supports multiple platform options, including mobile truck-mounted configurations and containerized variants for dispersed or semi-concealed deployment. Optional autonomous capabilities are available within the FLEXFires suite, and the system integrates into joint fire-control networks for participation in wider NATO sensor and targeting architectures.

Specifications

HIMARS FLEX is built on the XM1140 chassis and is C-130 transportable, with compatibility for the larger C-17 Globemaster III for strategic airlift. The dual-pod configuration doubles offensive firepower compared to the single-pod baseline. Depending on mission configuration, the dual-pod platform can carry 12 GMLRS or ER GMLRS rockets, 4 Precision Strike Missiles (PrSM), 2 ATACMS missiles, 8 PAC-3 interceptors, or 12 or more IFPC interceptors. All offensive munitions are compatible with NATO-standard inventories, and the system can be configured for air and missile defense roles using PAC-3, IFPC, and future interceptor types.