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Now You Can Print Out Gun Parts At Home

"It's a good hobby and it doesn't harm anybody."

Posted on February 19, 2013, at 6:29 a.m. ET

Travis Lerol, a software engineer demonstrates for the Washington Post how he prints out accessories for his AR-15 at home in Glen Burnie, Md.

Lerol uses a $1,300 machine called the Cube.

Printing accessories this size takes about 10 hours.

3-D printers like Lerol's are only capable of printing with plastics. However, expensive, industrial-scale printers that can produce parts made of high-grade polymers are expected to become more affordable as a result of the normal technology curve.