News Cities sue ‘ghost gun’ parts manufacturers as homemade firearms are tied to more crimes December 11, 2021December 11, 2021Kevin McCoy, USA TODAYComments Off on Cities sue ‘ghost gun’ parts manufacturers as homemade firearms are tied to more crimes Firms selling "80% build kits" enable anyone to build untraceable ghost guns. Cities are suing, saying the guns have been tied to crimes.