Open & Concealed Carry Explained

Suppressor vs. “Silencer” — What’s the Difference?

Let’s start with terminology.

The correct term is suppressor, not “silencer.” A suppressor reduces the sound signature of a firearm—it does not make it silent.

However, under Colorado law, the term used is “firearm silencer.” That’s important because the statute uses that exact wording.

What Colorado Law Says (C.R.S. § 18-12-102)

Under Colorado law:

• A firearm “silencer” is classified as a dangerous weapon
• Knowingly possessing one is a Class 5 felony

However, the statute also provides an affirmative defense:

It shall be an affirmative defense… that the person has a valid permit and license for possession of such weapon.

What Does “Permit and License” Mean?

In practice, this refers to federal approval under the National Firearms Act (NFA)—commonly known as a tax stamp.

What That Actually Means

Colorado does not clearly legalize suppressors the way many other states do.

Instead:

• The law prohibits possession
• Then allows a legal defense if you are federally compliant

If you legally own a suppressor through the federal process, your possession is legally defensible in Colorado.

Federal Law Controls Suppressors

Suppressors are regulated under the National Firearms Act (NFA).

To legally own one, you must:

• Submit an application to the Bureau of Alcohol, Tobacco, Firearms and Explosives
• Pass a background check
• Pay a $200 tax stamp
• Receive approval before taking possession

If you’ve done that, you fall under Colorado’s affirmative defense.

Can You Carry a Suppressed Firearm in Colorado?

The Honest Answer: Not Explicitly Authorized

There is no Colorado statute that explicitly allows or prohibits carrying a suppressed firearm.

However:

• Suppressors are classified as dangerous weapons
• Any legality relies on an affirmative defense, not clear statutory authorization

Legal vs Practical Reality

Just because something may be legally defensible does not mean it is advisable.

Carrying a suppressed firearm in public introduces:

• Increased likelihood of law enforcement detention
• Greater scrutiny in any use-of-force investigation
• Potential prosecutorial attention due to the classification as a “dangerous weapon”

My Recommendation (Law + Real-World Application)

I do not recommend carrying a suppressed firearm for defensive purposes in public—either:

• Open carry
• Concealed carry

Why:

1. You Are Operating Under an Affirmative Defense
You are not clearly authorized—you are defending your legality after the fact.

2. You Will Draw Immediate Law Enforcement Attention
A suppressed firearm in public is uncommon and will likely trigger a high-risk response until verified.

3. There Is Little to No Case Law Supporting It
This is not a well-defined or tested issue in Colorado courts.

Instructor Insight

From a training and real-world perspective, suppressed firearms are excellent tools for:

• Reducing hearing damage
• Improving communication during defensive incidents
• Maintaining better situational awareness

However, these benefits are best realized in controlled environments such as the home or range—not public carry.

Where Suppressors Make Sense

This is where you’re on much stronger ground:

• Home defense
• Private property
• Hunting (where legal)
• Range use

These uses are:

• Common
• Expected
• Far less likely to create legal issues

Open Carry vs. Concealed Carry (With a Suppressor)

Open Carry

• Generally legal in most of Colorado
• Prohibited in certain areas like Denver
• A suppressed firearm will almost certainly draw police attention

Concealed Carry

• Requires a valid CHP
• Not specifically addressed with suppressors
• Generally impractical due to size and concealment issues

Documentation Matters

You should always maintain access to your approved ATF documentation (tax stamp), either physically or digitally, when transporting or using a suppressor.

Key Takeaway

• Suppressors are classified as dangerous weapons in Colorado
• They are not outright legalized, but allowed through an affirmative defense tied to federal law
• Carrying one in public is not explicitly authorized under Colorado statute and relies on an affirmative defense
• Best practice: Keep suppressor use to home, private property, hunting, and the range

Q&A Section

Is it illegal to own a suppressor in Colorado?

No—if you are compliant with federal law, you have an affirmative defense under state law.

Can you use a suppressor for self-defense in Colorado?

Yes, in lawful settings such as your home or private property. Public carry is not explicitly authorized and relies on an affirmative defense.

Is a suppressor considered a weapon in Colorado?

Yes. Under Colorado law, a suppressor (“silencer”) is classified as a dangerous weapon.

Can police take your suppressor during a stop?

Law enforcement may temporarily secure it during an investigation. You should be prepared to provide proof of lawful ownership.

Can I carry a suppressed handgun for self-defense in public?

There is no clear law allowing or prohibiting it. It exists in a legally complex area and is not recommended.

Do I need a Colorado permit for a suppressor?

No. Suppressors are regulated under federal law, not a Colorado permit system.

Why does Colorado call it a “silencer”?

That is the statutory term, even though “suppressor” is the correct technical term.

Bottom Line

Suppressors are legal to possess in Colorado if federally registered—but they are still classified as “dangerous weapons” under state law. Carrying one in public for self-defense is not explicitly authorized and relies on an affirmative defense, making it a legally complex and higher-risk choice.

Colorado Concealed Handgun Permit (CHP) Class

If you live in Colorado and are applying for or renewing a Concealed Handgun Permit (CHP), state law requires completion of a qualifying training course taught by a verified instructor. Our Colorado CHP classes meet current statutory requirements and include legal instruction, firearms safety, and required certification documentation.
View upcoming Colorado CHP classes and sign up here: Colorado Concealed Handgun Permit Class

Self-Defense Insurance

Even a lawful act of self-defense can trigger criminal investigations, civil lawsuits, and significant legal costs. Many CCW holders evaluate self-defense insurance or legal protection plans to help manage those risks—coverage varies by provider and state, so understanding the differences matters.
Learn more and compare options here: Self-Defense Insurance Comparison

Other Related Articles:

• Can You Carry a Firearm on School Property in Colorado?
• Can You Carry a Firearm at a Polling Place in Colorado?
• Colorado Concealed Carry Laws: Is Printing or Exposure Illegal?
• What Are Colorado Gun Safe Storage Laws?
• What Is a “Verified Instructor” in Colorado?
• How Do You Register Guns In Colorado?
• Does CRS § 18-1-704.5 Apply to an Attached Garage in Colorado?
• Is There A Waiting Period To By A Firearm In Colorado?
• Can You Legally Lend a Firearm to Someone in Colorado?
• How to Legally Transfer a Firearm in Colorado
• Are You Required to Report a Stolen Firearm in Colorado?
• Do I Need Self Defense Insurance?
• How To Get Your Colorado CCW
• Colorado Safety Courses & Classes

Legal Disclaimer

Legal Disclaimer: This information is provided for educational purposes only and does not constitute legal advice. Firearm laws can change, and local, state, federal, tribal, and municipal regulations may vary. Always verify current laws and consult a qualified attorney before carrying a firearm or making legal decisions related to self-defense. US Firearms Training Academy assumes no liability for actions taken based on this content.