When you consider with today's 3D technology and the fact that you can print one out for yourself like the one shown here, how is it really do they expect to keep a gun from someone who wants one?
Police seize another batch of 3D printed guns as authorities deal with danger of downloadable firearms
www.news.com.au/technology/innovation/design/police-seize-another-batch-of-3d-printed-guns-as-authorities-deal-with-danger-of-downloadable-firearms/news-story/c2fa2711ebf7b761e3e2f0802a80d1b2