World’s first 3D-printed rifle gets update, fires 14 shots
A Canadian tinkerer who previously claimed to have created the world’s first 3D-printed rifle, only to see the barrel crack upon its first videotaped test firing, has now created an updated version of the gun that was able to fire 14 rounds before suffering damage.
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Story added 5. August 2013, content source with full text you can find at link above.