ghost gun

Etymology
Of. Derived from the fact that these firearms are un-serialized, difficult to trace, and often remain invisible to the tracking and regulation covering traditionally manufactured firearms. Known as “kit gun” or a “DIY gun.” Coined in 2012.

Noun

 * 1) A gun without serial numbers that cannot be easily tracked, especially a home-made gun built with non-registered, partially finished or 3D printed components.
 * 2) A gun that is not detectable by standard gun detection measures, such as a gun without much metal thus unable to set off metal detectors.
 * 1) A gun that is not detectable by standard gun detection measures, such as a gun without much metal thus unable to set off metal detectors.
 * 1) A gun that is not detectable by standard gun detection measures, such as a gun without much metal thus unable to set off metal detectors.
 * 1) A gun that is not detectable by standard gun detection measures, such as a gun without much metal thus unable to set off metal detectors.