International Edition
Latest News
Technology

Man Arrested in Madrid for Trafficking and Assembling Illegal Firearms from Online Parts

Guardia Civil Arrests Madrid Resident in Operation Ciermet for Illegal International Firearms Trafficking A Madrid resident has been arrested by the Guardia Civil and U.S. Homeland Security Investigations for allegedly importing internet-purchased firearm components from abroad to assemble…

Man Arrested in Madrid for Trafficking and Assembling Illegal Firearms from Online Parts

Guardia Civil Arrests Madrid Resident in Operation Ciermet for Illegal International Firearms Trafficking

A Madrid resident has been arrested by the Guardia Civil and U.S. Homeland Security Investigations for allegedly importing internet-purchased firearm components from abroad to assemble and sell fully functional weapons on the black market, elmundo.es reported. Investigators intercepted an initial postal package containing new pistol barrels originating from the United States, prompting a joint international investigation that uncovered a clandestine supply network operating across foreign websites.

Operation Ciermet Traces Illicit Internet Purchases From the United States

The investigation, named operation Ciermet, began after U.S. authorities intercepted a postal shipment destined for Spain containing several new pistol barrels, according to eldiariodemadrid.es. Homeland Security Investigations notified Guardia Civil firearms specialists, allowing law enforcement to trace subsequent shipments. The suspect allegedly used multiple fake identities over several months to purchase essential weapon parts from overseas vendors, deliberately bypassing domestic Spanish regulatory controls.

Law Enforcement Seizes Firearms and Cash During Raids in Madrid

Authorities confiscated a substantial arsenal and illicit funds during the operation, including seven pistols, a sawed-off shotgun, a rifle, 13 new pistol barrels, five frames, three silencers, and 1,400 metal cartridges of various calibers, abc.es reported. Agents also seized 6,500 euros in cash from the suspect. The individual utilized specialized technical knowledge and tools to assemble the components into working firearms after receiving the foreign shipments.

Judicial Proceedings at Majadahonda Court Number 7

The criminal case is directed by the Sección de Instrucción del Tribunal de Instancia de Majadahonda, plaza número 7, which oversees the ongoing judicial proceedings. The enforcement action falls directly under the Guardia Civil’s Plan Integral para el Control de las Armas de Fuego, an overarching national strategy established to suppress illegal arms supply channels.

Man Arrested in Madrid for Trafficking and Assembling Illegal Firearms from Online Parts
Photo: eldiariodemadrid.es

Frequently Asked Questions About the Madrid Firearms Trafficking Arrest

What specific components were ordered from foreign websites?

The suspect ordered essential parts including frames, barrels, and slides from online vendors located in the United States and other foreign countries, according to the Guardia Civil.

Man Arrested in Madrid for Trafficking and Assembling Illegal Firearms from Online Parts
Photo: abc.es

Which international agency collaborated with the Guardia Civil on this case?

U.S. Homeland Security Investigations worked jointly with the Guardia Civil throughout the cross-border inquiry, which began with an intercepted postal package.

Where is the judicial case being handled in Spain?

The investigation is directed by the Sección de Instrucción del Tribunal de Instancia de Majadahonda, plaza número 7.

29 suspects arrested in two blows against human trafficking networks
About the author: Anika Shah - Technology

MSc in Computer Science, senior reporter. Anika focuses on AI ethics, cybersecurity, and emerging hardware—frequently moderating panels at CES and Web Summit. “Anika Shah decodes tech breakthroughs and startup disruption shaping tomorrow’s digital landscape.”