The award expands a $4.7 billion UCA the company secured this April, which covered the first year of the program. How Will the UCA Affect PAC-3 MSE Production? The modification is expected to enable Lockheed Martin to increase its production of PAC-3 MSEs, with capacity seen to be tripled by the end of 2030. The facility houses Lockheed’s final all-up round production of PAC-3 MSE interceptors. A component of the Patriot weapon system, PAC-3 MSE is an advanced hit-to-kill interceptor, according to Army.mil.