Robert Adamski, 29, was nabbed trying to 3D-print parts for a deadly sub-machine gun, landing him multiple terrorism and firearms convictions.
3D Printer Busted Mid-Gun Build
London’s Counter Terrorism Policing swooped on Adamski’s Lea Bridge Road flat after spotting a 3D printer churning out a critical component for an FCG-9 Mk2 semi-automatic firearm. Detectives seized not only the printed parts—including a magazine capable of holding 25 rounds—but also extremist right-wing materials.

Police discovered Adamski was sharing terrorist documents as an admin on a Telegram group. Further digging revealed internet searches on 3D-printed guns and a purchase of the printer just weeks earlier.
Counter Terror Chief Speaks Out
“The intention to make a lethal weapon was obvious, even though the 3D printer still needed other parts and technical skills to complete a functioning firearm,” said Commander Dominic Murphy of Counter Terrorism Policing London. “We prevented at least two illegal firearms from reaching a man driven by hateful views. No evidence showed plans to attack specific communities. But this case is a stark warning: trying to build or possess 3D-printed guns carries serious consequences.”
Trial and Verdict
Arrested in Walthamstow in July 2024, Adamski faced Woolwich Crown Court in a two-week trial. He was found guilty of:
- Two counts of possessing firearm components (Section 5 Firearms Act 1968)
- Possessing terrorist documents (Section 58(1)(b) Terrorism Act 2000)
- Four counts of disseminating terrorist publications (Sections 2(1)(a) & (c) Terrorism Act 2006)
He awaits sentencing on 28 November 2024.
Spot Suspicious Activity? Report It
If you see anything suspicious, report it immediately at www.gov.uk/ACT or call 999 in an emergency.