Overview

• The Colorado State Shooting Association, represented by the Mountain States Legal Foundation, filed a federal complaint seeking to block key parts of Senate Bill 3 in the U.S. District Court for the District of Colorado.
• The suit contests restrictions that will require a sheriff-issued eligibility card and hours of training before most semiautomatic firearms with detachable magazines can be purchased, with the system scheduled to begin in August 2026.
• Plaintiffs argue the law unlawfully burdens law‑abiding residents under Supreme Court precedent in Heller and Bruen, calling the permit-to-purchase scheme an improper barrier to exercising gun rights.
• Named plaintiffs include Air Force veteran Israel Del Toro, who says bans on certain firearms and accessories—such as force‑reset triggers—would impede his ability to shoot given his injuries; a ban on rapid‑fire trigger devices is already in effect.
• Supporters, including Gov. Jared Polis and sponsor Sen. Tom Sullivan, say the measure advances public safety and responsible ownership, and prior Colorado gun rules have withstood court challenges.