The Supreme Court on Monday agreed to hear a case stemming from a disputed regulation of so-called "ghost guns."

The big picture: The Biden administration appealed a lower court ruling that invalidated its attempt to regulate the firearms, which are typically self-assembled and do not have serial numbers, making them difficult to trace.

The Supreme Court temporarily stayed the lower court ruling last summer.

The court will take up the case, Garland v. VanDerStok, in its next term, per ABC News.

The Supreme Court on Monday allowed the Biden administration to continue regulating so-called ghost guns – untraceable homemade weapons – as firearms under federal law.

The court’s brief order grants the Justice Department’s request to wipe away a lower court order and allow the regulations to remain in effect while a legal challenge brought by firearm manufacturers continues to play out in the lower courts.

There were no noted dissents to the order.

The U.S. Supreme Court has sided with the Biden administration, temporarily allowing enforcement of regulations over so-called "ghost guns" that can be made from kits at home.

The administration appealed a federal judge’s earlier ruling tossing out the regulations. In a 5-4 vote, the high court put that ruling from Texas on hold while the case is appealed further on the merits. The regulation will be enforced while the case is appealed to the 5th U.S. Circuit Court of Appeals in New Orleans and possibly further to the Supreme Court. 

The Supreme Court on Tuesday allowed the Biden administration to temporarily reinstate a rule by the Bureau of Alcohol, Tobacco, Firearms, and Explosives regulating “ghost guns” while a challenge to the rule continues in a federal appeals court. In June, a federal judge in Fort Worth, Texas, had barred the ATF from enforcing the rule anywhere in the United States. Urging the justices to intervene, U.S. Solicitor General Elizabeth Prelogar had told the justices that the order by U.S.

The Supreme Court handed down a brief order on Tuesday that will prevent violent criminals and other individuals who are not allowed to have guns from evading a federal law requiring background checks for gun buyers. The vote was 5-4, with Chief Justice John Roberts and Justice Amy Coney Barrett joining the Court’s three Democratic appointees.

The case, known as Garland v. VanDerStok, concerns so-called “ghost guns,” dismantled firearms that are sold in ready-to-assemble kits.

The Biden administration took action Tuesday to close a "ghost gun" loophole following an August rule issued by the Bureau of Alcohol, Tobacco, Firearms and Explosives .

ATF sent an open letter to "all federal firearms licensees" outlining how a number of "partially complete, disassembled, or nonfunctional" gun kits are now classified as "readily" available weapons, requiring each to carry a serial number and for dealers to run background checks prior to sales.

Barely a month after UPS announced it would stop shipping packages for companies that sell parts used to make untraceable firearms known as “ghost guns,” one of the nation’s most prominent gun control advocacy groups is demanding FedEx follow suit. 

The Giffords Law Center to Prevent Gun Violence, the organization associated with former U.S. Rep. Gabby Giffords, sent a letter Tuesday asking the president and CEO of FedEx to adopt “a policy of refusing to ship dangerous firearm products that are fueling the epidemic of gun violence in America.”

Shinzo Abe, the former Prime Minister of Japan, was assassinated with a gun on the streets of Nara, Japan. The killing shocked the world and, especially, Japan—a country with strict gun laws and tight control over ammunition. It appears that the killer used a homemade gun to carry out the attack. 

Officials in Japan, journalists, and firearms experts have all called the gun used to kill Abe “homemade.” Typically this refers to a 3D printed weapon, but the weapon used to kill the former Prime Minister appears more crude than that.

Untraceable “ghost guns” – put together like Legos from a kit – are increasingly showing up at crime scenes. Eliminating a legal loophole, a new federal rule now treats these firearm parts like regular guns.

Stepping away from his lectern in the White House Rose Garden, April 11, President Joe Biden walked to a nearby display and picked up two parts of a handgun. 

“It’s not hard to put together,” he said. With a drill, at home, “it doesn’t take very long. Anyone can order it in the mail. Anyone.”

President Joe Biden is set to unveil his administration’s finalized version of its “ghost gun” regulation as early as Monday, the Associated Press reports.

The incoming regulation is expected to crack down on unserialized, privately-made firearms, according to the AP.