WASHINGTON — The Supreme Court on Wednesday upheld a federal restriction on the sale of parts kits that permit unlicensed gun owners to make firearms at home that cannot be traced by the police. In a 7-2 decision, the justices agreed these homemade weapons, often referred to as “ghost guns,” qualify as firearms under federal law.

The Supreme Court on Wednesday upheld Biden-era federal regulations on “ghost guns,” mail-order kits that allow people to build untraceable weapons at home – handing gun control groups a rare win at the conservative high court.