The Stop US Arms to Mexico project seeks to  substantially reduce US legal sales and illegal trafficking of firearms to Mexico, including military-style assault weapons, in order to address the growing violence experienced by communities and migrants in Mexico, Central America, and the Caribbean. The project develops tools, capacity, relationships, and expertise to research, analyze and organize advocacy on the US arms trade to Mexico and Central America and on its impacts on state and organized criminal violence. Stop US Arms to Mexico is a project of Global Exchange and collaborates with Desarmando el Miedo, an alliance of Mexican organizations working to stem gun violence.

Stop US Arms to Mexico has a coordinator, John Lindsay-Poland, and representative in Washington, DC, Tania Del Moral.