Gun Laws/Colorado/Reviewed September 16, 2026
What is the magazine capacity limit in Colorado?
Quick answer
15 round limit
Colorado: 15 rounds.
0 of Colorado's 7 neighboring states have the same status. Check each one before you cross a state line with magazine capacity limits.
Not legal advice. Source: GunPartPicker state law review, September 16, 2026
Magazine capacity limits by state
Colorado law in detail
- 15 rounds (Mag Limit) — Magazines holding more than 15 rounds cannot be sold or transferred in Colorado. Possession of pre-ban magazines is legal.
- Yes (semi-autos, since Aug 2026) Permit to Purchase — Since August 1, 2026, buying most semi-automatic firearms with detachable magazines requires a sheriff issued eligibility card and a firearms safety course. A federal challenge is pending.
The federal rule
There is no federal magazine capacity limit; the federal limit ended with the 1994 ban in 2004. State limits usually cover sale, transfer and manufacture, and a few also make possession illegal, so a magazine you already own can be legal to keep but not to bring in.
Magazines in neighboring states
Next steps
Frequently asked questions
What is the magazine capacity limit in Colorado?
15 round limit. Colorado: 15 rounds. Reviewed September 16, 2026.
What is the federal rule on magazine capacity limits?
There is no federal magazine capacity limit; the federal limit ended with the 1994 ban in 2004. State limits usually cover sale, transfer and manufacture, and a few also make possession illegal, so a magazine you already own can be legal to keep but not to bring in.
How many states restrict magazine capacity limits?
Nationwide by our review: 35 states: no limit; 2: conditional or in litigation; 13: limit in effect.
More Colorado gun laws
Legal disclaimer: This page summarizes state law for general information and is not legal advice. Laws change and local rules can be stricter. Confirm with the Colorado statutes, the state attorney general or a licensed attorney before buying, building or traveling.