Are Bump Stocks Legal in Colorado?

BANNED: Bump stocks are will be illegal to possess in Colorado under state law.

Colorado is one of the 19 U.S. jurisdictions that restrict bump-fire stocks at the state level, regardless of the federal rules. Below: the statute, the history, and the penalties.

What the law says

Colorado’s ban is codified at Colo. Rev. Stat. § 18-12-102 (rapid-fire devices added by SB 25-003).

  • Controlling law: Colo. Rev. Stat. § 18-12-102 (rapid-fire devices added by SB 25-003)
  • Enacted: 2025
  • Penalty: Class 5 felony (possession of a dangerous weapon)

SB 25-003 (signed April 2025) added rapid-fire conversion devices — including bump stocks and binary triggers — to Colorado’s dangerous-weapons list, effective on signing, with no grandfather clause for existing owners.

The federal picture

In Garland v. Cargill (decided June 2024), the U.S. Supreme Court struck down the ATF rule that had reclassified bump stocks as machine guns. Since that ruling, bump stocks are legal under federal law. That does not help you in Colorado: the state’s own ban operates independently of federal law and remains fully enforceable.

Frequently asked questions

Is it illegal to have a bump stock in Colorado?

Yes — state law bans bump-fire stocks in Colorado, and the ban has been in force since 2025. This applies regardless of the device’s federal status.

What happens if I’m caught with one in Colorado?

The statute provides for penalties including: class 5 felony (possession of a dangerous weapon). Either way, it is a criminal matter, not a fine-and-forget violation.

I bought mine legally in another state — does that matter in Colorado?

Where you bought it doesn’t change Colorado law. Possession inside the state is what the statute reaches. If you move to Colorado, consult an attorney about lawful disposition before you arrive.

Nearby states

Where that leaves you

Because of the state ban described above, bump-fire stocks cannot be sold or shipped to Colorado, and this page exists for information only.

State device laws have shifted repeatedly since 2017, in both directions. If the law in Colorado changes, our newsletter subscribers are the first to hear about it — the signup form is available on our main site.

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Informational only, not legal advice. Laws change — verify current federal, state, and local law before purchasing. Last reviewed July 2026.