In May, California — through the County of San Diego's Office of County Counsel — sued Texas-based companies Defense Distributed, Coast Runner Industries and Ghost Gunner for making computer numerical ...

“Ghost Gunner” brand CNC mills (both containing aluminum shavings) • 25 (twenty-five) serialized AR-15 style lower receivers Machamer is charged with possession of a firearm with an ...

The upper receiver includes the barrel and the handguard. He also used a specialized machine called a “Ghost Gunner,” which links to a computer and can make lower receivers without serial numbers.

The lawsuit said the machine uses a different software platform and power supply than another milling device, the Ghost Gunner, that was made by Wilson’s company Defense Distributed and marketed ...