From Ars Technica
A Sacramento, California man was sentenced Thursday to over three years in prison for unlawful manufacture of a firearm and one count of dealing firearms.
Last year, Daniel Crownshield, pleaded guilty to those counts in exchange for federal prosecutors dropping other charges. According to investigators, Crowninshield, known online as “Dr. Death,” would sell unfinished AR-15 lower receivers, which customers would then pay for him to transform into fully machined lower receivers using a computer numerically controlled (CNC) mill. (In October 2014, Cody Wilson, of Austin, Texas, who has pioneered 3D-printed guns, began selling a CNC mill called “Ghost Gunner,” designed to work specifically on the AR-15 lower.)
“In order to create the pretext that the individual in such a scenario was building his or her own firearm, the…