Anduril opens robotic solid rocket motor facility in Mississippi targeting 6,000 tactical motors annually
Aug 5, 2025 with Brielle Terry
Key Points
- Anduril opens a full-rate robotic solid rocket motor facility in Mississippi capable of producing 6,000 tactical motors annually, with room to triple output by adding two more production lines on the existing 450-acre campus.
- The facility uses automotive-trained engineers and robotics to automate safety-critical manufacturing steps, producing motors ranging from 2 to 32 inches in diameter on a single size-agnostic line.
- Anduril is exploring additional production sites internationally, including Australia, to position near allied customers as it scales a propellant technology acquired through its 2015 integration of Adronos.
Summary
Anduril's rocket motor division has opened a full-rate production facility in coastal Mississippi, marking a significant expansion of domestic solid rocket motor manufacturing capacity. The ribbon cutting, attended by Senator Roger Wicker, took place on August 5, 2025.
The facility sits on a 450-acre campus comprising approximately nine buildings. Anduril took over the site in 2020, then nearly quadrupled the footprint of one building to build out an automated production line. Engineers recruited specifically from the automotive industry redesigned the manufacturing process around robotics, targeting safety-critical and quality-critical steps where human error carries the highest risk.
The line is designed to be size-agnostic, capable of producing motors ranging from 2 inches to 32 inches in diameter. At a representative mid-scale tactical size of 9 inches in diameter, a single facility can produce approximately 6,000 motors per year. The existing 450-acre campus has room for two additional full-rate production facilities, which would triple output without requiring a new explosives-rated site.
Anduril Rocket Motor Systems (RMS) traces its origin to Adronos, co-founded in 2015 by the current VP and General Manager alongside Chris Stoker. Adronos was at roughly 40 employees at the time Anduril acquired it, in what was effectively a vertical integration move since Anduril had already been a customer. The division has since grown to approximately 200 employees.
The founding thesis was a proprietary propellant formulation called Alletch, developed out of PhD research at Purdue University. The original plan was to license the IP to incumbent solid rocket motor suppliers, but the founders concluded those suppliers had little appetite for innovation and that vertical integration was the only path to adoption.
The Mississippi facility is explicitly designed as a replicable template. Anduril is publicly exploring additional sites, including international locations. Australia is specifically cited, tied to that country's Guided Weapons and Explosive Ordnance (GWEO) program, signaling a push to position near allied customers rather than solely relying on export from domestic sites.