since both "ghost guns" and machine gun converters can be produced using 3D-printed parts, the schematics for which are now widely available online. But you can know about an issue and still be ...

3D-printed gun parts are worth real money on the black market. Yep. Only the serial numbered part counts as "the gun". On an AR, they sell them as "stripped lowers". I've bought a few in the past.

4, 2024, have announced that the suspected assailant had used a 3D-printed gun. Several high-profile crimes in recent years have involved this kind of homemade, or partially homemade, weapon.