The Precision Strike Missile (PrSM) is a tactical ballistic missile being developed by the United States Army to replace the ATACMS.
In March 2016, Lockheed Martin, Boeing, and Raytheon announced they would offer a missile to meet the U.S. Army's Long Range Precision Fires (LRPF) requirement to replace the ATACMS. The PrSM will use advanced propulsion to fly faster and farther (originally out to 310 miles (500 km) while also being thinner and sleeker, increasing loadout to two per pod, doubling the number carried by M270 MLRS and M142 HIMARS launchers. Lockheed and Raytheon were involved in the competitive effort, but the latter left the competition in early 2020, leaving Lockheed Martin as the missile developer. The weapon is planned to achieve Initial Operational Capability in 2023; the initial PrSM will only be able to hit stationary targets on land, but later versions will track moving targets on land and sea. With the United States withdrawal from the Intermediate-Range Nuclear Forces Treaty, the range of the PrSM will be increased beyond the '499 km' limitation previously placed upon it by the treaty.
In June 2020, the Army had begun testing a new multi-mode seeker — an upgrade for the Precision Strike Missile — even though the missile would not enter service until 2023, the upgraded seeker is expected to be part of a major program improvement planned for 2025.
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The US Army’s PrSM program was originally conceived to develop a missile with a maximum range of 499 km, within the limits of the US-Russian Intermediate Range Nuclear Forces (INF) Treaty, which banned the development of strike weapons with ranges between 500 and 5,000 km. However, the Trump administration withdrew from the INF treaty in 2019 and US media reports in June suggest the US Army now wants to extend the weapon’s maximum range to beyond 1,000 km before the end of 2023.
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