A Sub-$2M Patriot Missile Is on the Way—and It Could Save PAC-3 MSEs for the Hardest Targets

Lockheed Martin has unveiled a new, lower-cost Patriot interceptor designed to enter production faster and preserve scarce PAC-3 MSE missiles for the most dangerous ballistic threats, The Wall Street Journal reported on July 20.

The PAC-3 Adapted Capability Effector, or ACE, is expected to cost less than half as much as the PAC-3 Missile Segment Enhancement interceptor. Recent US Army budget documents put the price of a PAC-3 MSE at more than $4 million per round, potentially bringing the ACE below $2 million.

Lockheed said the new interceptor would be faster to manufacture and capable of countering threats ranging from cruise missiles to “close-range and short-range ballistic missiles.”

The company did not disclose how effective the ACE would be against longer-range ballistic missiles of the kind Russia has repeatedly used in devastating attacks against Ukraine.

The new missile is intended to occupy a middle tier in the Patriot arsenal. Less expensive ACE interceptors could be used against comparatively simpler targets, while the more advanced PAC-3 MSE would be reserved for the most difficult ballistic threats.

Serial production is expected to begin within the next three years, involving manufacturing facilities in both the United States and Europe.

The announcement comes as global inventories of advanced air-defense interceptors continue to shrink. Lockheed and RTX, which produces the Patriot launcher and radar system, have pledged to meet White House demands to triple or quadruple the output of selected high-end missiles over the coming years.

Military officials have also emphasized the need for cheaper, mid-tier air defenses that can reach operational units in months rather than years.

Previously, Polish Defense Minister Władysław Kosiniak-Kamysz said production of Patriot PAC-3 interceptor missiles in Ukraine could begin within the coming weeks.

With the licensing process underway, the senior Ukrainian official confirmed that Lockheed Martin—the defense contractor that manufactures the Patriot interceptors—supports granting the production licenses to Ukraine. Ukrainian officials expect the technical and bureaucratic review process to advance significantly faster than the multi-month timeframe previously estimated by defense industry analysts.

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