The ATF has actually said in Forbes that it is legal in the US to download and 3D print this file for personal use. Be careful to remain compliant with your local laws, however. Note that the name of this gun ("The Liberator") is a direct reference to the FP-45 Liberator, from World War II:
The proposed intent was to air-drop these single-shot
weapons at concentration camps where internees would pick
up these weapons, overcome Nazi Guards, and hopefully
liberate the camp. ...
The weapon was valued as much for its psychological warfare
effect as its actual field performance. It was believed
that if vast quantities of these weapons could be delivered
into Axis-occupied territory, it would have a devastating
effect on the morale of occupying troops. The plan was to
drop the weapon in such great quantities that occupying
forces could never capture or recover all the weapons. It
was hoped that the thought of thousands of these
unrecovered weapons potentially in the hands of the
citizens of occupied countries would have a deleterious
effect on enemy morale.
The Forbes piece on the Liberator has more details:
http://defcad.org/liberator
http://defcad.org/wp-content/plugins/download-monitor/downlo...
The ATF has actually said in Forbes that it is legal in the US to download and 3D print this file for personal use. Be careful to remain compliant with your local laws, however. Note that the name of this gun ("The Liberator") is a direct reference to the FP-45 Liberator, from World War II:
http://en.wikipedia.org/wiki/FP-45_Liberator
The Forbes piece on the Liberator has more details:http://www.forbes.com/sites/andygreenberg/2013/05/05/meet-th...