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Colorado

CO
moderate

Firearm Regulations

Assault Weapon Ban
Partial (local)
Mag Capacity Limit
15 rounds
Permit to Purchase
No (until Aug 2026)
Firearm Registration
No
Concealed Carry
Shall Issue
Open Carry
Yes (except Denver)
Red Flag Law
Yes
Background Check (Private)
Yes
NFA Weapons
Unrestricted
State Preemption
Partial

Key Notes

15-round magazine limit. Denver bans assault weapons and open carry. 3-day waiting period effective Oct 2023. Firearms safety course required for most semi-auto purchases starting August 2026.

  • •15 rounds (Mag Limit) — Magazines holding more than 15 rounds cannot be sold or transferred in Colorado. Possession of pre-ban magazines is legal.
  • •Partial (local) Assault Weapon Ban — There is no statewide assault weapon ban, but Denver and some localities ban assault weapons within city limits.
  • •Shall Issue (Concealed Carry) — The state must issue a concealed carry permit if you meet the legal requirements. There is no discretion to deny qualified applicants.
  • •Yes (except Denver) Open Carry — Open carry is legal statewide except in Denver, which bans it by local ordinance.
  • •Partial (State Preemption) — The state preempts most local gun laws, but Denver and a few other localities retain some regulatory authority, including assault weapon bans.
  • •No (until Aug 2026) Permit to Purchase — Currently no permit is needed, but starting August 2026, a firearms safety course will be required to purchase most semi-automatic firearms.

Last updated January 15, 2026

CACT

Legal Disclaimer: This page is for informational and educational purposes only and does not constitute legal advice. Firearm laws change frequently and vary by jurisdiction. Always verify current regulations with official state sources, a qualified attorney, or local law enforcement before making purchasing or carrying decisions. GunPartPicker is not responsible for errors, omissions, or actions taken based on this information.