<sod>A '''ghost gun''' is a firearm without serial numbers. The term is used by [[gun control]] advocates, [[gun rights]] advocates and law enforcement.<ref name="Greenberg"/><ref name="Steele"/><ref name="Melendez"/><ref name="Lee"/> By making the gun themselves, owners may legally bypass background checks and registration regulations.<ref name="Greenberg"/>  Some ghost guns become part of the illicit firearms trade.<ref name="NatGeo"/> Under US Federal law, the creation and possesion of ghost guns is permitted but transferring them is a felony.<eod>
<sod>A '''ghost gun''' is a [[firearm]] without [[Serial code|serial numbers]]. The term is used by [[gun control]] advocates, [[gun rights]] advocates and law enforcement.<ref name="Greenberg"/><ref name="Steele"/><ref name="Melendez"/><ref name="Lee"/> By making the gun themselves, owners may legally bypass [[background check]]s and [[Firearms license|registration regulations]].<ref name="Greenberg"/> Some ghost guns become part of the [[Arms trafficking|illicit firearms trade]].<ref name="NatGeo"/> Under [[Law of the United States|US Federal law]], the creation and possession of ghost guns is permitted but transferring them is a [[felony]].<eod>