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Jun 30, 2026

Arizona gun shop owner faces terrorism-related charges for allegedly selling high-caliber weapons bound for Mexican cartels - ICIJ

Arizona gun shop owner faces terrorism-related charges for allegedly selling high-caliber weapons bound for Mexican cartels

It is the first such case filed since the Trump administration designated several of the criminal groups as foreign terrorist organizations in 2025.

By Image: Luke Sharrett/Bloomberg via Getty Images April 30, 2026
Attendees handle .50 caliber sniper rifles on the exhibit floor during the National Rifle Association (NRA) annual meeting in Louisville, Kentucky, U.S. in 2016.

Federal prosecutors have charged an Arizona gun dealer with attempting to provide material support to terrorists, signaling a new approach to slowing the deluge of weapons flowing across the border into Mexico.

The indictment, filed in March, revolves around the sale of several high caliber firearms to an undercover agent who posed as a gun runner for a Mexican drug cartel. The case is the first of its kind brought against a firearms dealer in the state and likely the first such action in the United States, according to an analysis of federal court records by the International Consortium of Investigative Journalists.

The Trump administration designated six Mexican drug cartels as terrorist organizations in February 2025, opening the door for law enforcement agencies to take a variety of actions against the groups and those who do business with them.

Criminal organizations in Mexico and elsewhere have long relied on the loosely regulated U.S. gun market to procure firearms, including powerful, military-style rifles they have used in shootouts with government forces and in civilian massacres.

In February, those arsenals were on full display as cartel gunmen unleashed violence across Mexico in response to the Mexican Army killing New Generation Jalisco Cartel leader Nemesio Rubén Oseguera Cervantes, known as El Mencho.

More than 60 people died during the violence.

Mexican soldiers watched over a funeral home in the city of Guadalajara, Jalisco state, Mexico, on March 1, 2026, where the body of drug trafficker Nemesio “El Mencho” Oseguera, who died on February 22 during a military operation, was being held for a wake.

In the wake of the attacks, Mexican defense secretary Ricardo Trevilla Trejo told reporters that 80 percent of the more than 23,000 firearms seized by the Mexican government since late 2024 originated in the United States

U.S. gun dealers have rarely been held accountable for their role in facilitating the movement of those weapons.

There are over 77,000 licensed firearms dealers across the country, compared to two in all of Mexico, according to the most recent government data. And there are few federal restrictions on what kinds of guns they can sell or who can buy them.

In theory, the federal government can bring criminal charges against dealers who facilitate trafficking or can take administrative action against them, such as revoking their license, but in practice that is often difficult, according to Marianna Mitchem, a former senior official at the ATF who worked on industry regulation and currently serves as the Senior Firearms Industry Advisor at Everytown for Gun Safety, a non-profit that advocates for stronger firearms regulation.

“Both avenues are available, but both require proving the dealer’s culpability, and for years that difficulty has been used as a reason not to try,” Mitchem said.

The terrorism-related charges unveiled in Arizona in March appear to be a “test case” for a new strategy to reign in illicit firearms sales, according to Jason Red, a former investigator at the Department of Homeland Security in Arizona, who worked on gun trafficking investigations.

Mark Oliva, managing director of public affairs for the National Shooting Sports Foundation, a firearms industry trade association, said that the group, “supports the Department of Justice’s efforts to keep firearms from being illegally trafficked, whether that is to criminal elements within the United States or narcoterrorists beyond our borders.”

In recent years, Arizona has become a hub for gunrunners moving high-caliber firearms from the United States to Mexico. Drug cartels have used the firearms, some of which are closely modeled on U.S. military weapons, to go toe-to-toe with the Mexican authorities, who complain that they are often outgunned by the powerful criminal organizations.

The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) regularly conducts gun traces on behalf of foreign governments, including Mexico, in an effort to identify the origins of firearms used in crimes.

From 2015 through 2024, more of those guns came from Arizona’s Maricopa County, home to the capital city of Phoenix, than from any other county in the United States, according to ATF data obtained by Stop U.S. Arms to Mexico, a project of Global Exchange, a human rights organization.

“If you look at the data over the last decade, you can see a very clear growth from Arizona as a preferred source, if you will, for firearms and ammunition,” said Cecilia Farfán-Méndez, head of the North American Observatory at the Global Initiative Against Transnational Organized Crime, a Geneva-based watchdog group.

She attributes the growth to two main factors: the state’s permissive gun laws and its role as a logistics hub for both legal and illegal goods, ranging from avocados to fentanyl.

“You have this business-friendly environment where you can purchase these high-caliber weapons and assault rifles and ammunition, and you already have potential resources in place to move them south,” she said.

In 2022, the government of Mexico filed a lawsuit in Arizona against five federally licensed gun dealers there, alleging that they “routinely supply high-powered firearms to criminal organizations in Mexico.”

Grips by Larry, the Arizona store named in the charges filed by federal prosecutors in March, was not included in the suit. The business came to the ATF’s attention during an investigation into guns being trafficked to Mexico from the Phoenix metropolitan area, according to a criminal complaint prosecutors filed in June 2025 against one of the store’s employees.

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