Guns3D printing: a new threat to gun control and security policy?

By Daniel C. Tirone and James Gilley

Published 19 July 2016

The threat of self-manufactured firearms is not new, but a critical barrier is collapsing. Until recently, most people did not have the skills to make a weapon as capable as commercially available ones. However, recent developments in the field of additive manufacturing, also known as 3D printing, have made home manufacturing simpler than ever before. The prospect of more stringent gun safety legislation is also fueling interest in at-home production. The worst threats 3D printing poses to human life and safety are likely some distance in the future. However, the harder policymakers and others work to restrict access to handguns or unconventional weapons, the more attractive 3D printing becomes to those who want to do harm.

Following the recent mass shooting in Orlando, and the shootings in Minnesota and Dallas, the sharp political divisions over gun control within the U.S. are once again on display. In June, House Democrats even staged a sit-in to advocate for stronger laws.

There is some evidence that more restrictions can reduce gun violence, but another recent shooting highlighted some limitations of regulation. British Member of Parliament Jo Cox was murdered with a “makeshift gun” despite the United Kingdom’s restrictive gun-control laws.

The threat of self-manufactured firearms is not new, but a critical barrier is collapsing. Until recently, most people didn’t have the skills to make a weapon as capable as commercially available ones. However, recent developments in the field of additive manufacturing, also known as 3D printing, have made home manufacturing simpler than ever before. The prospect of more stringent legislation is also fueling interest in at-home production.

Plans for basic handguns that can be created on consumer-grade 3D printers are readily available online. With more advanced 3D printers and other at-home technologies such as the Ghost Gunner computer-controlled mill, people can even make more complex weapons, including metal handguns and components for semi-automatic rifles.

These technologies pose challenges not only for gun regulation but also for efforts to protect humanity from more powerful weapons. In the words of Bruce Goodwin, associate director at large for national security policy and research at the Lawrence Livermore National Laboratory, “All by itself, additive manufacturing changes everything, including defense matters.”

Policymakers and researchers respond
Government officials have recently begun to react to this emerging threat. The U.S. State Department argued that posting online instructions to make a 3D-printed single-shot handgun violated federal laws barring exports of military technology. At the local level, the city of Philadelphia outlawed the possession of 3D-printed guns or their components in 2013.