The right-wing extremist attacker from Halle had numerous homemade weapons with him on his shooting spree. But their quality was poor. Others, though, are perfecting the reliability of 3D-printed weapons - and have moved on to rocket launchers.
Vancouver Island cops seize 3D-printed 'ghost' guns, body armour - Greater Victoria News
WPS see rise in 'ghost guns
Alexander Epp - DER SPIEGEL
66 charges in Calgary 3D gun production bust
Are plastic 3D printed guns safe for the shooters? - Quora
3D-printed guns are appearing on British streets - and the police are taking notice, UK News
3D printed guns: Warnings over growing threat of 3D firearms
New US Federal Rule Treats 3D Printed Guns Like Any Other Firearm
3D-printed weapons: Interpol and defense experts warn of 'serious' evolving threat
3D Firearm Proliferation Among Latin American Criminal Organizations
FGC-9, Military Wiki
The Future is Now: The Use of 3D-Printed Guns by Extremists and Terrorists – GNET
FGC-9, Military Wiki
What Are 3D-Printed Guns, and Are They Legal?