On November 12, 2023, the RJ Civil Police, the Public Ministry of Rio de Janeiro (MPRJ), and the Ministry of Justice and Public Security initiated Operation Shadowgun. This operation focuses on an interstate scheme involved in the production and sale of firearms manufactured with 3D printers. As part of the crackdown, law enforcement reported the arrest of one individual identified as the leader of the criminal group, amid an extensive operation issuing 4 arrest warrants in São Paulo and 32 search and seizure warrants across São Paulo and 10 other states.

The investigations were conducted by the 32nd Police Division (Taquara) and the Cyber Crime Combat Unit of the Special Action Group against Organized Crime of the MPRJ (CyberGaeco/MPRJ). Authorities uncovered that the criminal organization was primarily focused on producing and selling gun magazines made through 3D printing technology. Moreover, they were promoting designs for untraceable firearms, referred to as “ghost guns.” The implications of this operation highlight significant concerns regarding the proliferation of unregulated firearms derived from advanced technologies, which pose unique challenges for law enforcement.

Operation Shadowgun underscores not only the immediate law enforcement response to the illegal arms trade in Brazil but also the broader implications of technology in crime. With the increasing accessibility of 3D printing technology, the operation serves as a crucial reminder of the need for enhanced regulatory measures and vigilance in monitoring the distribution of such technology to prevent its misuse in criminal activities. This case may pave the way for further legislative action and discussions on public safety related to firearms manufacturing and distribution.