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, a case that successfully challenged the Biden ATF’s ‘pistol brace’ ban and secured injunctive relief for gun owners while the case was being litigated to final judgment, which completely vacated the rule,” the Firearms Policy Coalition said in a statement.

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