Man who used 3D printer to make gun parts guilty of terrorism and firearms offences

A man who used a 3D printer to make parts of a gun has been found guilty of terrorism and firearms offences, the Metropolitan Police said.

Counter-terrorism officers found Robert Adamski had printed part of a semi-automatic rifle when they searched his home in Leyton, east London, last summer.

The 29-year-old Polish national was also found to have various items relating to extreme right-wing ideology, police said. Analysis of his phone revealed he had shared documents in a Telegram group of which he was an admin.

After a two-week trial at Woolwich Crown Court, Adamski was on Thursday found guilty of seven counts, including two counts of possession of a component part of a firearm and four counts of dissemination of terrorist publications.

Adamski was arrested and taken into custody on 11 July 2024.

Counter-terrorism police searched his home the following day and found the printer making part of the gun, as well as a number of other parts he had printed for the firearm, including storage that could hold 25 cartridges.

Counter-terrorism detectives found multiple internet searches for 3D-printed guns and how to make them.

A payment for a 3D printer was discovered in his credit history in June 2024.

Days later, Adamski saved a guide on how to make the FCG-9 Mk2 firearm using a 3D printer.

Commander Dominic Murphy, head of Counter Terrorism Policing London, said: “The device still needed a number of other parts as well as technical know-how to make it viable. However, the intention to make a lethal weapon was clear.

“This proactive counter-terrorism investigation has prevented two potential firearms from falling into the hands of a man who held hateful views towards ethnic minorities in London.”

Officers found no evidence Adamski was planning to target any particular communities or the wider public, he added.

Adamski will be sentenced on 28 November.