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Colorado Gun-Rights Group Files Federal Challenge to Semiautomatic Training Law

Plaintiffs invoke the Supreme Court’s Bruen test to argue SB 3 violates the Second Amendment.

Overview

  • The Colorado State Shooting Association, an NRA affiliate, filed the lawsuit in U.S. District Court with Mountain States Legal Foundation representing the plaintiffs.
  • The complaint targets SB 3’s requirement that buyers of many semiautomatic firearms complete state-approved safety training and obtain a sheriff-issued eligibility card starting August 1, 2026.
  • Plaintiffs also seek to overturn bans on rapid-fire trigger devices and high-capacity magazines, noting the rapid-fire device ban took effect immediately upon the bill’s signing in April.
  • Named plaintiffs include a U.S. Air Force veteran, a 19-year-old prospective buyer, and a domestic violence survivor, all alleging the law imposes unlawful burdens on gun ownership.
  • Gov. Jared Polis has framed the measure as a public-safety policy promoting responsible training, and his office declined comment on the pending case.