The Biden-era ATF rule restricting pistol braces was vacated Thursday after President Donald Trump's Department of Justice agreed to drop its appeal in a federal lawsuit, delivering a major victory to gun-rights advocates, Breitbart reported. The move marks a significant reversal in federal firearms regulation and concludes a lengthy legal battle over the Bureau of Alcohol, Tobacco, Firearms, and Explosives' 2023 rule that reclassified AR-pistols with braces as short-barreled rifles under the National Firearms Act. "This afternoon, Firearms Policy Coalition (FPC) and the federal government agreed to a joint dismissal of the government's appeal in our Mock v. Bondi lawsuit,...