National Association for Gun Rights v. Polis

── National Association for Gun Rights v. Polis ── Court: Court of Appeals for the Tenth Circuit Date: April 23, 2026 Category: General Appellate Case: 24-1209 Document: 66-1 Date Filed: 04/23/2026 Page: 1 FILED United States Court of Appeals PUBLISH Tenth Circuit UNITED STATES COURT OF APPEALS April 23, 2026 Christopher M. Wolpert FOR THE TENTH CIRCUIT Clerk of Court _________________________________ NATIONAL ASSOCIATION FOR GUN RIGHTS; CHRISTOPHER JAMES HIESTAND RICHARDSON; MAX EDWIN SCHLOSSER; JOHN MARK HOWARD; ROCKY MOUNTAIN GUN OWNERS, Plaintiffs - Appellants, v. No. 24-1209 JARED S. POLIS, in his official capacity as Governor of the State of Colorado, Defendant - Appellee. ------------------------------ DISTRICT OF COLUMBIA; ARIZONA; CALIFORNIA; CONNECTICUT; DELAWARE; HAWAII; ILLINOIS; MAINE; MARYLAND; MASSACHUSETTS; MICHIGAN; MINNESOTA; NEVADA; NEW JERSEY; NEW YORK; OREGON; PENNSYLVANIA; RHODE ISLAND; VERMONT; WASHINGTON; WISCONSIN; BRADY CENTER TO PREVENT GUN VIOLENCE; EVERYTOWN FOR GUN SAFETY SUPPORT FUND; GIFFORDS LAW CENTER TO PREVENT GUN VIOLENCE, Amici Curiae.  Appellate Case: 24-1209 Document: 66-1 Date Filed: 04/23/2026 Page: 2 _________________________________ Appeal from the United States District Court for the District of Colorado (D.C. No. 1:24-CV-00001-GPG-STV) _________________________________ Barry K. Arrington, Arrington Law Firm, Wheat Ridge, Colorado for Plaintiffs- Appellants National Association for Gun Rights, Christopher James Hiestand Richardson, Max Edwin Schlosser, John Mark Howard, and Rocky Mountain Gun Owners. Shannon Wells Stevenson (Philip J. Weiser, Attorney General, Michael T. Kotlarczyk, Assistant Solicitor General, Pat Sayas, Senior Assistant Attorney General, Kit Spalding, Senior Assistant Attorney General, and Sam Wolter, Assistant Attorney General, on the brief), Colorado Attorney General’s Office, Colorado Department of Law, Denver, Colorado, for Defendant-Appellee Jared S. Polis, in his official capacity as Governor of the State of Colorado. Brian L. Schwalb, Attorney General for the District of Columbia, Caroline S. Van Zile, Solicitor General, Ashwin P. Phatak, Principal Deputy Solicitor General, Marcella E. Coburn, Assistant Attorney General, and Anne A. Deng, Assistant Attorney General, Office of the Attorney General, Washington, D.C., filed an Amici Curiae brief for The District of Columbia, Arizona, California, Connecticut, Delaware, Hawaii, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington, and Wisconsin, in support of Appellee. Kathleen R. Hartnett, Cooley LLP, San Francisco, California, and Adam M. Katz, Cooley LLP, Boston, Massachusetts, filed an Amici Curiae brief for Brady Center to Prevent Gun Violence, Everytown for Gun Safety Support Fund, and Giffords Law Center to Prevent Gun Violence, in support of Appellee. _________________________________ Before EID, KELLY, and CARSON, Circuit Judges. _________________________________ CARSON, Circuit Judge. _________________________________ In June 2023, Colorado enacted a law that prohibits the purchase, sale, transfer, and possession of unserialized firearms, firearm frames or receivers, and 2  Appellate Case: 24-1209 Document: 66-1 Date Filed: 04/23/2026 Page: 3 firearm parts ki