Brentwood man used 3D printer to convert ghost gun to machine gun, feds say
A Brentwood man is facing federal charges after being arrested in September at a grocery store while allegedly carrying a ...
Brentwood man allegedly found with 3D printed gun, machine gun conversion switch
An East Bay man is facing a federal weapons charge after he was allegedly found with a 3-D printed firearm and a device that converts a pistol into a machine gun.