Lockheed Martin’s family of tested Precision Strike Missile (PrSM) variants will expand through 2026 as the company begins testing both the PrSM Increment 2 anti-ship ballistic missile variant and the PrSM Increment 4 long-range maneuvering fire variant. The company is also exploring ship-launched PrSM capability from Mark 41 VLS cells on U.S. Navy warships.
Lockheed Martin’s prototype Increment 4 Precision Strike Missile (PrSM) design was on display for the first time according to Lockheed Martin officials. Initial flight tests are planned in 2026 with additional tests continuing through 2027 as the design matures and competition continues.
Scott Prochniak, S&BD Principal at Lockheed Martin Missiles & Fire Control, provided details to Naval News on the show floor in an exclusive interview.
The most recent requirement is 800 kilometers [of range]. Our motor design is a dual mode motor. This is going to be a missile that can be launched with an extreme offset—great range, and it doesn’t have to fly in a straight line to get where it’s going.”
Scott Prochniak, S&BD Principal at Lockheed Martin Missiles & Fire Control
Increment 4 uses advanced propulsion methods to reach ranges that previous variants of the Precision Strike Missile can’t achieve, hitting ranges over 800 kilometers away, including moving targets. This is in contrast to the previously reported requirement of 1,000 kilometers.
Lockheed Martin also confirmed a seeker requirement for Increment 4 earlier this year at Modern Day Marine 2025. Kathy Withrow, Lockheed Martin’s Director for of Strategy and Business Development, confirmed to Naval News earlier this year that the missile will have a terminal seeker, enabling a moving target prosecution capability.
Prochniak provided further detail, confirming that Increment 4 will reuse the seeker from Increment 2 as a commonality and cost saving measure.
“We’re going to reuse an existing seeker—the seeker from Increment 2. Take it from one family and put it in the other. It’s cost effective.”
Scott Prochniak, S&BD Principal at Lockheed Martin Missiles & Fire Control
Paula Hartley, Vice President and General Manager for Tactical Missiles at Lockheed Martin, detailed the company’s wider efforts in testing Increment 4 capabilities on Monday. Several subcomponents have been tested in the buildup to the 2026 range demonstration flight test.
“We’re continuing to position ourselves to be successful. That includes very significant [Increment 4] subcomponent tests over the last several months that started in the last year.”
Paula Hartley, Vice President and General Manager for Tactical Missiles at Lockheed Martin
According to Hartley, the Land Based Anti-Ship Missile (LBASM), a standard PrSM ballistic missile with an added multi-mode EO/IR seeker, will also begin flight testing against moving targets in early 2026. LBASM adds a electro optical and infrared seeker (EO/IR) onto the baseline PrSM.
That EO/IR seeker being developed for LBASM will be one reused on Lockheed Martin’s Increment 4 PrSM. A similar seeker is used on Lockheed Martin’s Long-Range Anti-Ship Missile (LRASM).
The first flight test for Increment 4, planned for sometime in 2026, will test the missile’s long range capability. Lockheed Martin is “really excited” for that first flight test according to Prochniak.
“We’re really excited about the flight test coming up. Just to demonstrate how far we can achieve without dropping any boosters, which is what separates us from any competition. We’re not dropping anything over water, over land, or over friendly troops.”
Scott Prochniak, S&BD Principal at Lockheed Martin Missiles & Fire Control
Lockheed Martin is now producing 120 PrSMs per year in a largely automated facility that sits adjacent to the company’s ATACMS production line. Current plans have the line extending to a 400-per-year rate before 2030, focusing on Increment 1 and Increment 2. Prochniak anticipates that the same line will be used to build Increment 4 which shares components and electronics with earlier increments.
Prochniak also added that a ship-launched capability is being discussed with the U.S. Navy to provide a long-range strike capability to surface combatants. Increment 4 is currently focused on HIMARS launchers, but earlier increments, like the land-attack Increment 1 and anti-ship Increment 2, are on the table for further testing.
