Man arrested for selling $50 3D-printed machine gun conversion kits to undercover cops — ‘Glock switches’ turn pistols into fully-automatic weapons

Emani Rey Justavino of Jacksonville, Florida, was arrested for selling more than 50 'Glock switch' converters that gives the pistols fully automatic capabilities. The suspect claims that he 3D-printed the entire batch overnight and offered them all at a discount to an undercover ATF agent.

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