A man was sentenced to federal prison for manufacturing and selling firearms without a serial number and “machine gun conversion devices” using a 3-D printer.

A Nevada man has been sentenced to five years in prison after being convicted of manufacturing and selling guns without a serial number and machine gun conversion kit devices with a 3D printer.

A Las Vegas resident, James Mosqueda, was sentenced to five years in prison followed by four years of supervised release for manufacturing and selli ...