US expands PAC-3 MSE missile production with plan to nearly triple propulsion output

L3Harris Technologies is preparing to sharply increase production of propulsion systems for one of the U.S. military’s most advanced air defense interceptors after securing a long-term framework agreement with the Department of War and Lockheed Martin. The seven-year agreement supports future procurement of propulsion hardware for the PAC-3 Missile Segment Enhancement (MSE) interceptor. It also gives L3Harris the production certainty needed to expand manufacturing capacity over several years. The contract is expected to be finalized later this year. Long-term production ramp L3Harris said the agreement marks its largest propulsion program for the PAC-3 MSE to date. Once fully implemented, the company expects to nearly triple output across several propulsion products used in the interceptor. The production increase will cover the missile’s advanced two-pulse solid rocket motor, Attitude Control Motors (ACMs), and the Lethality Enhancer. Together, those systems help the interceptor maneuver precisely and defeat incoming threats. “This critical, long-term agreement will allow us to continue to move at unprecedented speed and produce PAC-3 propulsion at rates never before seen,” said Ken Bedingfield, President, Missile Solutions, L3Harris. Bedingfield added that the company is preparing its manufacturing facilities and supplier network for the planned production increase while adding new capacity to support future demand from the Department of War and allied nations. The agreement supports the Department of War’s push to expand domestic production of critical munitions as demand for advanced air defense systems continues to grow. How PAC-3 MSE works The PAC-3 MSE interceptor serves as the most capable missile in the Patriot air and missile defense system. Unlike traditional interceptors that rely primarily on blast fragmentation, the PAC-3 family uses hit-to-kill technology, destroying incoming threats through direct body-to-body impact. That approach transfers significantly more kinetic energy into the target during an interception. A two-pulse solid rocket motor gives the MSE variant greater range and altitude than earlier PAC-3 interceptors. After the initial boost, the motor reignites later in flight to maintain speed and maneuverability against fast-moving targets. Attitude Control Motors provide precise steering during the final moments before impact. The interceptor also carries a Lethality Enhancer, an explosive device designed to increase its kill radius against threats, including cruise missiles. Factory expansion underway L3Harris has already upgraded its PAC-3 MSE motor manufacturing facility in Camden, Arkansas, to support higher production rates. The site now features dedicated processing bays and automated digital X-ray inspection equipment that reduce inspection time and improve manufacturing throughput. Those upgrades form part of a broader investment across the company’s solid rocket motor operations. L3Harris is investing billions of dollars to expand capacity, constructing about 60 facilities while adding or upgrading nearly one million square feet of manufacturing and office space across production sites in Arkansas, Alabama and Virginia.The expanded industrial footprint is expected to support sustained production of PAC-3 MSE propulsion systems as the United States and its allies continue strengthening missile defense capabilities.Recommended ArticlesGet the latest in engineering, tech, space & science - delivered daily to your inbox.Aamir is a seasoned tech journalist with experience at Exhibit Magazine, Republic World, and PR Newswire. With a deep love for all things tech and science, he has spent years decoding the latest innovations and exploring how they shape industries, lifestyles, and the future of humanity.