At the beginning of July 2022, Frontex published an international version of its Handbook on Firearms for Border Guards and Customs Officers. The handbook contains the latest information on firearms, their parts and ammunition, associated documentation, and the phenomenon of firearm trafficking itself. It also provides guidelines for border control and further handling of seized weapons. The handbook puts together the recent developments and best practices existing on both European and international levels to support national border and customs authorities in both EU and non-EU countries to reinforce their operational response against arms-related crime.