Colorado Magazine Capacity Laws – Compliance and Penalties

Do you know Colorado bans magazines over 15 rounds and punishes violations with fines, jail, or lost gun rights? This article cuts through the confusion by summarizing the state’s magazine capacity laws, compliance steps, and penalties for noncompliance. You will get simple, actionable tips to stay legal, avoid costly mistakes, and keep your firearms.

Colorado’s 15-Round Magazine Limit

Colorado law says most gun magazines cannot hold more than 15 rounds. This rule started in 2013 and still applies to buyers and owners today. If you live in Colorado or just visit, you need to know how this limit works to stay safe and legal.

The law covers magazines for rifles, handguns, and shotguns. There are a few exceptions for older mags made before July 1, 2013, and for certain workers. Below we explain who must follow the rule and what happens if you break it.

Who Must Follow the 15-Round Rule?

Regular gun owners in Colorado must use magazines that hold 15 rounds or fewer. Police officers and military members on duty are exempt. Also, magazines built before the 2013 cutoff can be kept, but you cannot buy or sell new high-capacity ones.

For example, if you own a hunting rifle, check your magazine. If it holds 20 rounds, you need to change it or face a fine. A local shop in Denver reported that 3 out of 10 customers needed help finding compliant mags last year.

“Keeping your magazine under 15 rounds is the easiest way to avoid a costly penalty in Colorado.”

Penalties for Breaking the Law

If you are caught with a magazine over the limit, you could get a misdemeanor charge. The fine can be up to $1,000 and you might spend time in jail. Repeat offenses bring bigger penalties.

Here is a quick look at possible punishments:

Always check your gear before you travel. A simple count of rounds can save you from a legal headache.

Easy Tips to Stay Compliant

Follow these simple steps to follow the law:

• Count the rounds your magazine can hold.
• Mark older mags with the date you owned them.
• Ask a local gun store if you are unsure.

Retailers and Residents Affected by Colorado Magazine Capacity Laws

Colorado has a rule that stops people from selling or owning gun magazines that hold more than 15 bullets. This law touches both store owners and regular folks who own guns. If you run a shop or keep a rifle at home, you need to know the limits.

Retailers must pull large magazines off their shelves. Residents who already own big mags may keep them if they reported them before the deadline, but they cannot sell or buy new ones. A good first step is to count your magazines and check the marks on the side.

Simple Steps for Store Owners and Gun Owners

Staying on the right side of the law is easy when you follow a few clear actions. Shops should train staff to spot high-capacity items, and families should store only allowed gear.

• Retailers: Post a sign about the 15-round limit near the counter.
• Residents: Use a marker to label each magazine with its round count.
• Both: Ask a local sheriff if you are unsure about an old item.

Colorado dealers face fines up to $1,000 for each banned magazine sold.

We made a small table to show who does what. It helps you see the split at a glance.

If you follow these tips, you lower the risk of a penalty and keep your hobby safe. Check the state site each year for any change in the number.

Grandfathered Magazines Before 2013

Colorado passed a law in 2013 that limits gun magazines to 15 rounds. If you owned a larger magazine before July 1, 2013, it is called a grandfathered magazine. You can keep it, but you must follow strict rules to stay legal.

Many people worry about proving their magazines are old. The law does not require a registration card. Still, you should keep proof of purchase or any record that shows you had the magazine before July 1, 2013.

Grandfathered mags are legal to own in Colorado if they were in your hands before July 1, 2013.

Let’s look at a simple table that shows what you can and cannot do with old magazines:

How to Stay Compliant

Keep your receipts in a safe place. Write the date on a piece of tape and stick it to the magazine base. This small step helps if police ask questions. A photo of you with the mag in 2012 also works as proof.

If you break the rule and sell a grandfathered magazine, you could face a misdemeanor charge. Fines may reach $1,000 and jail up to one year. Always check with a local gun lawyer before moving old mags out of state.

Fines and Jail Under CRS 18-11-309

In Colorado, the rule CRS 18-11-309 says you cannot knowingly have a magazine that holds more than 15 rounds of ammo. This law covers gun magazines sold or owned after July 1, 2021. If you break this rule, you may face penalties that include fines and jail time.

The key question is what punishment you get under this law. A first offense is a class 2 misdemeanor. That means you could spend from 3 to 12 months in county jail and pay a fine from $250 to $1,000. The court may also give you probation instead of jail for a minor case.

How the Penalty Works in Real Life

Let’s look at a simple example. Jake bought a 20-round magazine online without checking the law. Police found it during a traffic stop. Jake was charged under CRS 18-11-309. He faced up to a year in jail and a $1,000 fine, but his lawyer helped him get probation.

Here is a quick table that shows the basic penalty numbers for this law:

Some people are exempt, like police officers or those with older magazines owned before the law. You should check the rules before buying any magazine.

Colorado courts treat each banned magazine as a separate misdemeanor that can add up fast.

To stay safe, only use magazines that hold 15 rounds or less. If you are unsure, ask a local gun shop or a lawyer. Keeping proof of purchase date can help show you followed the law.

Defenses for Accidental Possession

Colorado law says a magazine that holds more than 15 rounds is not allowed in most cases. If you carry one without knowing, you may face a class 2 misdemeanor charge. This part looks at ways to show the possession was truly accidental.

A strong defense is mistake of fact. This means you did not know the magazine was over the limit. For example, a friend lent you a rifle with a magazine already inside, and you had no reason to check the count. The law cares about what you knew at the time.

Simple Ways to Show Accidental Possession

Below are common steps that can help your case if you face charges for a high-capacity magazine in Colorado.

• Show proof you bought the item from a seller who said it was legal.
• Share texts or emails where someone else said the magazine held 10 rounds.
• Prove you just found the magazine in a box from a relative who lived out of state.

Colorado courts look at the person’s mind, not just the object. If you can show you had no clue, the case may drop.

Colorado law requires proof that the person knew the magazine held more than 15 rounds.

This quote shows why a good defense focuses on your lack of knowledge. Keep all receipts and messages to back up your story.

Here is a quick look at possible defenses and what they need.

Safe Transport and Storage Steps

Under Colorado magazine capacity laws, individuals must transport magazines with a capacity exceeding fifteen rounds in a separate locked container away from the firearm. Compliance requires that no loaded large-capacity magazine remains accessible during transit to avoid misdemeanor penalties.

When storing such magazines at a residence, owners should use a secured safe that prevents insertion into any firearm. Regular audits of storage practices help maintain adherence to state restrictions and reduce risk of confiscation or fines.

References

1. Colorado State Government
2. National Rifle Association
3. Giffords Law Center