GM Delivers Patriot Missile Parts to Lockheed in 22 Days

General Motors delivered its first Patriot missile parts to Lockheed Martin just 22 days after signing their partnership. The parts — castings that form the outer shell of PAC-3 missiles — mark the fastest visible proof yet that Detroit's automakers can convert industrial muscle into defense revenue on demand.

The delivery matters because it signals scale, not symbolism. President Donald Trump has invoked the War Powers Act to press defense contractors and industrial giants such as GM and Ford Motor Company to replenish shrinking supplies of missiles and munitions amid the continuing conflict with Iran and ongoing arms shipments to Ukraine. Both automakers are pushing for more contracts.

A wartime playbook, revived

The move echoes World War II, when both companies halted civilian car production to arm the U.S. military. General Motors converted more than 100 plants and factories to build airplane engines, machine guns and tank components. Ford used its production capacity to deliver thousands of jeeps, heavy-duty military trucks and complete B-24 Liberator bombers.

The modern revival started in 2017, when General Motors resurrected GM Defense as a dedicated subsidiary. The unit already builds lightweight Infantry Squad Vehicles for the U.S. Army, based on the Chevrolet Colorado pickup. Many investors overlooked that move.

The numbers behind the push

GM Defense is expected to generate nearly $700 million in revenue this year and is on pace to turn an EBIT profit despite early investment costs, according to the company. General Motors projects a compound annual growth rate of more than 30% for the defense unit over the next several years, with operating margins targeted at 12% to 15%.

Those margins stand out against the lower-single-digit margins that have long defined the traditional automotive business. This is exactly the narrative both companies are fighting: that automakers are permanently low-margin, capital-intensive machines.

Ford is attacking the same problem from other angles. It is building out battery energy storage systems. General Motors is growing high-margin subscription services around OnStar and Super Cruise. Defense is the newest — and oldest — leg of that strategy.

Small revenue, big signal

Investors should size this correctly. GM Defense's near-$700 million is a rounding error against the more than $185 billion in annual revenue General Motors expects in 2026. The defense business will not instantly lift revenue or earnings to a new level.

The value lies in the trajectory. GM Defense is still in the early stages, but it combines 30%-plus growth with double-digit operating margins — a mix the core car business cannot offer. Each new contract, such as the Lockheed partnership, demonstrates that these century-old manufacturers can relearn old tricks and price them at better margins.

Today's defense work is far smaller in scale than the Arsenal of Democracy era. But it is incremental, high-margin business arriving at a moment when Washington is actively recruiting industrial capacity. The Pentagon needs castings and vehicles; Detroit has idle-scale plants and proven conversion speed.

The open question is valuation. If Wall Street starts rewarding these outside-the-box strategies, the multiple on both stocks could re-rate even before defense revenue becomes material. Investors should watch whether GM Defense hits its 12% to 15% margin target and whether Ford lands defense contracts of its own — those two data points will tell whether Detroit's second Arsenal of Democracy is a business, not just a headline.