'Ghost Guns' Popular Among Anti-Government Groups
Guns N' Bitcoin, founded in 2019, promotes new ways to develop and purchase "ghost guns" that are 80 percent complete gun, sold with a kit of the materials needed to finish building the firearm. Another increasingly popular option is building ghost guns out of entirely 3D-printed parts. These guns have no serial number and don't require background checks; their rise poses serious obstacles to law enforcement's ability to track sales and distribution.