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Building A Ghost Gun - Ricochet.com

Wired's Andy Greenberg decided to try his hand at building off-the-grid AR-15 lower receivers (i.e., the legally-important part of a rifle) using different methods: finishing a nearly-complete one with a drill press, 3D-printing one out of plastic, and ...

Submitted in section: Paranormal news 2015: Building A Ghost Gun - Ricochet.com