Found in 1 comment on Hacker News
epicviking · 2011-09-21 · Original thread
http://www.amazon.com/Machine-Pistol-Workshop-Defense-Resist...

http://www.amazon.com/Bazooka-How-Build-Your-Own/dp/08736473...

Guns really are not that complicated. I wish I had the time and the cojones to actually try to make one of these.

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