This is interesting to me since I've been involved with rapid prototyping here and there related to my job.
At this point, the concern is partly a rehash of the hysteria surrounding the introduction of the Glock but as material science related to this process progresses (and it will), creating durable parts suitable for firearms will be possible...
http://money.cnn.com/video/news/2012/12/20/n-3d-printers-make-guns.cnnmoney/index.html?iid=GM I look forward to the day when I can buy an app for my iPad to print me out an engraved Purdey shotgun.
