Unlike other guns, these weapons don't have serial numbers. They can be assembled from 'buy build shoot' kits or from other parts or they can be 3D-printed.
Ghost guns are firearms that are privately assembled and untraceable. With the latest announcement from the Biden administration, here's a look at what's behind the White House's latest steps designed to curb gun crimes. The figure marked a tenfold increase from 2016, according to the White House. In 2021, about 20,000 suspected ghost guns were recovered by law enforcement in criminal investigations and reported to the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). The Department of Justice said Monday that it had submitted to the Federal Register a final rule designed to curb the proliferation of so-called 'ghost guns' - untraceable firearms that don't have serial numbers. A 9mm pistol build kit with a commercial slide and barrel with a polymer frame is displayed at the White House.