Washington D.C. – Democratic lawmakers introduced federal legislation Thursday aimed at halting the sale of high-caliber ammunition manufactured at U.S. Government-owned facilities to the public. The bill, co-sponsored by Senators Elizabeth Warren (D-Mass.) and Andy Kim (D-Calif.), and Representatives Robert Garcia (D-Calif.) and Jamie Raskin (D-Md.), also seeks to prevent the sale of assault weapons by Pentagon contractors. This action follows a joint investigation by the International Consortium of Investigative Journalists (ICIJ) and The Latest York Times revealing the flow of .50-caliber ammunition from a U.S. Army plant to Mexican drug cartels.
The investigation uncovered that the ammunition, produced at the Lake City Army Ammunition Plant in Missouri, has been used in escalating violence in Mexico, including attacks on government forces and civilians. The proposed legislation represents a renewed effort to curb the unintended consequences of a decades-old arrangement allowing the commercial sale of ammunition produced at government facilities.
“Americans’ tax dollars should not be used to fuel gun violence,” Senator Warren stated. “Congress must step in to keep Americans safe, and that means stopping the U.S. Military and giant defense contractors from selling weapons of war to cartels, criminal groups, and mass shooters that terrorize our communities.”
The Lake City Army Ammunition Plant, the largest producer of rifle rounds for the U.S. Government and its allies, has manufactured billions of rounds for both military and civilian markets. The plant’s output includes .50-caliber ammunition – powerful cartridges capable of penetrating armored vehicles – despite its limited civilian application. According to the ICIJ investigation, at least 16 online retailers in the U.S. Have sold this ammunition, despite previous congressional attempts to restrict its availability.
Cartel Violence Fueled by U.S.-Made Ammunition
The ICIJ’s reporting details how cartels have acquired large quantities of .50-caliber ammunition through civilian dealers and smuggled it into Mexico. Cartel gunmen have reportedly used this ammunition to down helicopters, assassinate government officials, and attack police and military forces. In February, Mexico’s defense minister revealed that nearly half of the .50-caliber ammunition seized by Mexican authorities bore markings from the Lake City plant. The investigation identified four instances where casings from Lake City ammunition were recovered at crime scenes linked to cartel violence, including one incident where armor-piercing rounds penetrated an armored vehicle, resulting in one fatality and three injuries.
The plant also produces ammunition for the AR-15 semiautomatic rifle, frequently found at crime scenes in the United States, as reported by ICIJ and The New York Times in November 2025.
A Complex Arrangement and Republican Opposition
While the Lake City plant is owned by the U.S. Government, it is operated by private contractors under an agreement intended to reduce costs for the military and ensure continued operation even during periods of lower military demand. This arrangement has drawn criticism, with some arguing it allows weapons with limited civilian use to fall into the wrong hands.
Republican officials have defended the arrangement, arguing it is vital for national security and ensures a readily available supply of affordable ammunition for the public. In 2024, attorneys general from 28 states sent a letter to then-President Joe Biden opposing efforts to halt commercial production at Lake City, stating, “Our country needs to be prepared to face foreign adversaries rather than focusing on destroying the Second Amendment and crippling the firearm and ammunition market.”
What we have is not the first attempt by Democratic lawmakers to address the issue. A previous bill aimed at stopping sales of Lake City ammunition to civilians failed to gain traction in Congress. Congressman Robert Garcia expressed hope that this time will be different, stating, “We should not live in a world where weapons and ammunition sold by the government end up in the hands of violent criminals and are used to devastate our own communities.”
The proposed legislation faces an uncertain path forward, particularly given the political divisions surrounding gun control. However, the recent revelations about the flow of U.S.-made ammunition to Mexican cartels have intensified the debate and may provide renewed momentum for the bill.
The debate over the Lake City plant and its commercial production highlights the complex interplay between national security, Second Amendment rights, and the unintended consequences of government policy. The outcome of this legislative effort will likely shape the future of ammunition sales and the ongoing efforts to combat gun violence both domestically and internationally.
What happens next will depend on committee assignments and the willingness of both parties to engage in meaningful negotiations. The bill’s sponsors have indicated they are committed to pushing for a vote, but its success remains to be seen. Readers are encouraged to share their thoughts and engage in constructive dialogue on this important issue.
