https://3dprintingindustry.com/news/aerojet-rocketdyne-test-cubesat-rocket-with-3d-printed-piston-38133/
Defense manufacturer Aerojet Rocketdyne has successfully test fired their CubeSat High-Impulse Adaptable Modular Propulsion System with 3D printed piston.
aerojet rocketdyneprinting industrytestcubesat
https://www.l3harris.com/newsroom/editorial/2023/11/aerojet-rocketdyne-hits-another-production-milestone-pac-3-air-and
Aerojet Rocketdyne Hits Another Production Milestone on PAC-3 Air and Missile Defense System
aerojet rocketdynehitsanotherproductionmilestone