Biden to announce fed's final 'ghost gun' ruling amid pressure to address violent crime

President Biden will on Monday announce his administration's formal rule on so-called "ghost guns," essential DIY weapons without a serial number that have increasingly been linked to violent crime.

The administration has been working on the ruling for nearly a year, amid pressure to slow the recent surge in violent crime in the U.S. 

The new rule in part changes the definition of a firearm under federal law to include unfinished parts, like the frame of a handgun or the receiver of a long gun, according to the Associated Press.

Congressional Democrats and such influential gun safety groups as Everytown for Gun Safety have for months been pushing for the Justice Department to finish the rule, while gun-rights groups prepare to oppose its implementation.