Part of a key firearms law lapsed following a federal court decision. What happens now?

A federal judge's ruling in Texas has led to a key provision of the National Firearms Act expiring, affecting regulations on certain weapons like machine guns and short-barreled rifles. This decision could result in less stringent controls on these firearms, sparking debate over public safety and gun control. The outcome of this ruling could set a precedent for future legal challenges to existing gun laws, making it a pivotal moment for firearm regulation in the U.S.