US Supreme Court Dismisses Gun Store Lawsuit: Only 4.5% of Illicit Firearms Trafficked to Mexico Stopped by “Operation Northern Border”

Web Editor

June 6, 2025

a gun store with a gun and rifle on display in the center of the room and people looking at the guns

Background on the Case

In a 9-0 decision, the United States Supreme Court prevented two American gun companies, Smith & Wesson and Interstate Arms, from facing a lawsuit by the Mexican government. The lawsuit accused these companies of assisting in the illegal trafficking of firearms to Mexican drug cartels, thereby fueling armed violence in the country.

The Parties Involved

Smith & Wesson and Interstate Arms sought to dismiss the lawsuit filed in Boston in 2021 by Mexico, invoking the U.S. Firearm Trade Protection Act of 2005. This law shields firearms manufacturers from responsibility for crimes committed using their products.

Mexico’s Allegations

Mexico claimed that the companies deliberately maintained a distribution system involving gun dealers who knowingly sold firearms to straw purchasers, which then ended up with drug cartels. Additionally, Mexico accused the companies of illegally designing and marketing their weapons as military-grade to boost demand among cartels, sometimes associating their products with the U.S. military and law enforcement.

Supreme Court’s Decision

The Supreme Court upheld the lower court’s decision, ruling that the companies were protected under the Firearm Trade Protection Act (PLCAA) of 2005. The Mexican government, through the Secretaría de Relaciones Exteriores (SRE), expressed disappointment with the ruling and pledged to continue using all legal and diplomatic resources to curb illicit arms trafficking.

Reactions to the Ruling

The Center for Human Rights Miguel Agustín Pro Juárez (Centro Prodh) also expressed disappointment with the resolution. Meanwhile, Jon Lowy, president of Global Action on Gun Violence (GAGV) and legal representative for Mexico, stated that the ruling did not refute Mexico’s arguments about the gun industry’s deliberate role in illicit arms trafficking. He claimed that the dismissal was due to a special congressional concession to the gun lobby.

Ongoing Litigation

The decision does not affect another lawsuit filed by Mexico in 2022 against five gun distributors in Tucson, Arizona. This case is currently in the evidence-gathering phase.

Operation Northern Border

In coordinated actions along Mexico’s northern border over four months, authorities have seized 3,353 firearms, 554,854 bullets, and 16,164 magazines. However, these seizures represent only 4.95% of the estimated 200,000 illegal firearms entering Mexico annually.

Key Points of the Mexican Lawsuit

  • August 2021: Mexico filed a civil lawsuit in a federal court in Boston against 11 U.S. gun manufacturers for negligent practices facilitating illegal trafficking.
  • September 2022: A federal judge in Massachusetts dismissed the lawsuit, citing protection under the Firearm Trade Protection Act (PLCAA) of 2005.
  • October 2022: Mexico appealed the decision to the U.S. Court of Appeals for the First Circuit in Boston, arguing that PLCAA should not apply to damages occurring outside the U.S.
  • January 2024: The First Circuit Court of Appeals ruled in favor of Mexico, determining that the lawsuit could proceed and companies were not protected by PLCAA in this case.
  • August 2024: A federal judge in Boston dismissed the case against six of the eight defendant companies, citing lack of jurisdiction. The lawsuit continues against Smith & Wesson and Interstate Arms, with a hearing in the U.S. District Court in Boston to discuss subsequent litigation stages.
  • March 2025: The U.S. Supreme Court held a hearing to determine if the defendant companies enjoyed immunity under PLCAA.
  • June 2025: The U.S. Supreme Court unanimously dismissed Mexico’s lawsuit, concluding that the companies were protected by PLCAA and Mexico failed to provide sufficient evidence.

Key Questions and Answers

  • What was the lawsuit about? The Mexican government sued 11 U.S. gun manufacturers, including Smith & Wesson and Interstate Arms, for negligent practices that allegedly facilitated illegal firearms trafficking to Mexican drug cartels.
  • Why was the lawsuit dismissed? The U.S. Supreme Court ruled that the Firearm Trade Protection Act (PLCAA) of 2005 protected the gun companies from responsibility for crimes committed using their products.
  • What is Operation Northern Border? It’s a coordinated effort by Mexican authorities along the northern border to intercept illegal firearms, resulting in the seizure of 3,353 guns, 554,854 bullets, and 16,164 magazines over four months.
  • How many illegal firearms enter Mexico annually? Estimates suggest around 200,000 illegal firearms enter Mexico each year, with the seizures from Operation Northern Border accounting for only 4.95% of that total.
  • What happens next for Mexico’s lawsuit? The remaining lawsuit against Smith & Wesson and Interstate Arms continues, with the Mexican government vowing to use all available legal and diplomatic resources to combat illicit arms trafficking.