HB1133 requires retailers to keep ammunition behind the counter or in locked displays, generally prohibits selling ammunition to anyone under 21 and adds age-verification and signature requirements for ammunition deliveries. Violations start as civil offenses but can become misdemeanors for repeat or delivery-related violations.
The Colorado State Senate passed HB1133 on March 25, 2025 by a vote of 19 to 16. We have assigned pluses to the nays because this bill infringes on the Second Amendment by denying adult citizens under 21 — who may vote and serve in the military — their right to acquire ammunition necessary to keep and bear arms. Such age-based restrictions contradict America's founding principles, including the Militia Act of 1792, which required able-bodied males beginning at age 18 to arm themselves. The right to self-defense is a natural right, and the Constitution plainly declares that the right of the people to keep and bear arms "shall not be infringed."
