Precise figures about the numbers of illegal firearms in the European Union (EU) are lacking, but several indicators point to their widespread availability and accessibility. According to the Small Arms Survey, over half of the estimated total number of firearms held by civilians in the EU in 2017 were unlicensed. While most of these citizens had no criminal intentions, their illicit firearms could be used for self-harm or domestic violence, or end up in the hands of criminals or terrorists. Most criminals and terrorists have more sophisticated ways to get hold of illicit firearms. They can be trafficked from source countries, diverted from legal supply chains, illegally manufactured or assembled in the EU, converted from legally available weapons, or sourced on the internet... ©The material may not be edited and must be shown entirely.