Official Colorado Specified Semiautomatic Firearms Guide
Beginning August 1, 2026, Colorado law requires many individuals purchasing specified semiautomatic firearms to first complete a state-approved Firearms Safety Course and obtain a Firearms Safety Course Eligibility Card (FSCEC).

Does the firearm I am to purchasing require a firearms safety course?
The answer isn’t always straightforward.
To help firearm dealers and purchasers, the Colorado Department of Revenue published a comprehensive Specified Semiautomatic Firearms Guidance document identifying hundreds of firearm models and series that fall under Colorado’s new law.
This guide explains what the Firearms Safety Course Eligibility Card is, what types of firearms are included, and how to determine whether the firearm you’re planning to purchase may require the card before completing your transaction.
What Is the Colorado Firearms Safety Course Eligibility Card?
The Firearms Safety Course Eligibility Card is issued through the applicant’s county sheriff and is part of the process required to purchase or transfer a specified semiautomatic firearm in Colorado.

The application and card come before the firearms safety course. The correct order is:
- Create an account in the Colorado Firearms Safety System and submit an application.
- Provide the required identification and name-based background-check information to your county sheriff.
- Pay the Colorado Parks and Wildlife fee and any separate fee charged by the sheriff.
- The sheriff reviews the application and, if approved, issues the Firearms Safety Course Eligibility Card.
- Enroll in the appropriate course with a verified Firearms Safety Program instructor.
- Complete the course, hands-on practical exercises, and final examination with a score of at least 90%.
- The instructor records your completion in the Firearms Safety System.
- Present your eligibility information to a licensed firearm dealer when purchasing a covered firearm.
Applicants with qualifying Hunter Education complete the 4-hour Basic Firearms Safety Course. Applicants without qualifying Hunter Education complete the 12-hour Extended Firearms Safety Course, which must be taught over at least two separate days.
The card is valid for five years, but it does not authorize the purchase of a covered firearm by itself. The required course and examination must also be successfully completed before the dealer can verify eligibility and proceed with the firearm transaction.
What Firearms Are Covered?
Colorado’s published guidance identifies hundreds of firearm models and firearm series that meet the statutory definition of a Specified Semiautomatic Firearm.

While many people immediately think of the AR-15, the guidance includes a much broader selection of firearms from dozens of manufacturers.
The published guidance primarily consists of:
- Semiautomatic rifles
- Semiautomatic detachable-magazine shotguns
- Frames, receivers, and certain firearm parts kits associated with specified semiautomatic firearms
The Department reviews and updates the guidance annually as new firearm models become available.
The Official List Is Much Larger Than Most People Expect
Many firearm owners assume the law only applies to AR-15 style rifles.
In reality, Colorado’s official guidance spans more than 150 pages and includes hundreds of firearm models from manufacturers across the world.
Examples of manufacturers appearing in the guidance include:
- Aero Precision
- Adams Arms
- Alexander Arms
- American Tactical
- Anderson Manufacturing
- Arsenal
- B&T
- Barrett
- Battle Arms Development
- Bear Creek Arsenal
- Black Rain Ordnance
- Bravo Company Manufacturing (BCM)
- Brigade Manufacturing
- Bushmaster
- Camdon Defense
- Caracal
- Century Arms
- Chiappa Firearms
- Citadel
- Colt
- Daniel Defense
- Diamondback Firearms
- DSA Arms
- FN America
- Heckler & Koch
- IWI
- Kalashnikov USA
- KelTec
- LWRC International
- Palmetto State Armory
- Ruger
- Sig Sauer
- Smith & Wesson
- Springfield Armory
- Windham Weaponry
This is only a small sample of the manufacturers included within the official guidance.
Popular Firearm Platforms Included
Rather than attempting to list every firearm contained within the 150-page guidance, it is more useful to understand the firearm platforms commonly included.
AR-15 Platform Rifles
The guidance contains numerous AR-pattern rifles manufactured by companies such as:
- Aero Precision
- Bravo Company Manufacturing (BCM)
- Bushmaster
- Anderson Manufacturing
- Adams Arms
- Black Rain Ordnance
- Bear Creek Arsenal
- Daniel Defense
- Diamondback Firearms
- LWRC International
- Palmetto State Armory
- Ruger
- Smith & Wesson
- Springfield Armory
- Windham Weaponry
Because AR-platform rifles are highly customizable, Colorado notes that firearms configured to meet the statutory definition may still fall within the law.
AR-10 Style Rifles
The guidance also includes many AR-10 platform rifles, including manufacturers such as:
- Aero Precision
- Alexander Arms
- Anderson Manufacturing
- Brigade Manufacturing
- Barrett
- Black Creek Labs
AK Pattern Rifles
Numerous AK-pattern rifles are identified throughout the guidance, including firearms manufactured by:
- Arsenal
- Century Arms
- Kalashnikov USA
- Palmetto State Armory
- Various imported AK platforms
Pistol-Caliber Carbines (PCC)
Many semiautomatic pistol-caliber carbines also appear in the published guidance, including firearms from manufacturers such as:
- Anderson Manufacturing
- B&T
- Brigade Manufacturing
- Ruger
- Smith & Wesson
.22 LR Semiautomatic Rifles
One of the biggest surprises for many firearm owners is the inclusion of numerous semiautomatic .22 caliber rifles.
Examples include rifles manufactured by:
- Armscorp
- Bear Creek Arsenal
- Brigade Manufacturing
- German Sport Guns (GSG)
Precision Semiautomatic Rifles
Colorado’s guidance also includes larger-caliber semiautomatic rifles, including examples from:
- Barrett
- Daniel Defense
- FN America
- LWRC International
- Sig Sauer
Tactical Shotguns
The guidance includes numerous semiautomatic detachable-magazine shotguns, including firearms manufactured by:
- Black Aces Tactical
- Century Arms
- Chiappa Firearms
- Citadel
- Molot
- Panzer Arms
- Rock Island Armory
Not Every Firearm Requires the Eligibility Card
While the guidance contains hundreds of listed firearms, not every firearm sold in Colorado requires a Firearms Safety Course Eligibility Card.
Certain firearms are excluded by Colorado statute and therefore are not included within the published guidance.
If you are unsure whether your firearm is covered, always consult the current Colorado guidance before making a purchase.
Frames, Receivers, and Parts Kits
One of the most overlooked parts of Colorado’s Firearms Safety Course Eligibility Card law is that it doesn’t apply only to complete firearms.

Under C.R.S. 18-12-116 and the Colorado Department of Revenue’s Specified Semiautomatic Firearms Guidance, frames, receivers, and weapons parts kits for specified semiautomatic firearms are also considered Specified Semiautomatic Firearms and are subject to the same requirements as complete firearms.
This means that if you are purchasing components associated with a covered firearm—such as certain stripped receivers or parts kits—you may also need to meet Colorado’s Firearms Safety Course Eligibility Card requirements before completing the transaction.
Because these items are regulated based on their relationship to a specified semiautomatic firearm, they are not typically listed individually throughout the manufacturer’s roster. Instead, their inclusion comes directly from Colorado law and the Department of Revenue’s guidance.
Examples May Include
- Frames for specified semiautomatic firearms
- Receivers for specified semiautomatic firearms
- Weapons parts kits designed for specified semiautomatic firearms
If you’re unsure whether a frame, receiver, or parts kit is covered, consult your licensed Colorado firearms dealer or review the latest guidance published by the Colorado Department of Revenue before making a purchase.
How Do I Know If My Firearm Is Covered?
Before purchasing a firearm, consider the following questions:
- Is the firearm specifically identified within Colorado’s published guidance?
- Is it part of a listed firearm series?
- Is it an AR-platform rifle configured to meet the statutory definition?
- Is it a semiautomatic detachable-magazine shotgun identified in the guidance?
- Is it a receiver or parts kit associated with a specified semiautomatic firearm?
If you’re uncertain, consult your licensed firearm dealer or review the official guidance before completing your purchase.
Take Your Denver Firearms Safety Course with Concealed Carry Classes of Denver
If you’re planning to purchase a specified semiautomatic firearm in Colorado, Concealed Carry Classes of Denver (CCCD) makes the process simple, professional, and convenient.
Our Colorado-approved Firearms Safety Courses are taught by Verified Colorado Firearms Safety Program Instructors who provide clear, engaging instruction that goes beyond simply meeting the state’s minimum requirements. Whether you qualify for the 4-Hour Basic Firearms Safety Course or need the 12-Hour Extended Firearms Safety Course, you’ll receive the training necessary to satisfy Colorado’s educational requirements.
12 Hour Firearms Safety Course

Our Colorado-approved 12-hour course is designed for individuals who do not qualify for the shortened 4-hour course. Taught over two days, it provides comprehensive instruction on firearm safety, Colorado law, safe handling, storage, maintenance, and responsible firearm ownership, along with the required written examination and hands-on practical exercises.
4 Hour Firearms Safety Course

Designed for applicants who qualify through an approved Hunter Education program, this Colorado-approved 4-hour course covers firearm safety, Colorado law, safe handling, storage, and responsible ownership. Students complete the required instruction and written examination needed to satisfy the Firearms Safety Course requirement.
What is the Colorado Firearms Safety Course Eligibility Card?
The Firearms Safety Course Eligibility Card (FSCEC) is a state-issued credential required before purchasing certain specified semiautomatic firearms in Colorado. The card is issued through your county sheriff after you submit an application, complete the required background check process, and meet the state’s eligibility requirements. After receiving the card, you must successfully complete the required Firearms Safety Course before purchasing a covered firearm.
Why did Colorado create the Firearms Safety Course Eligibility Card?
The Firearms Safety Course Eligibility Card was established under Colorado law to require additional firearm safety training before purchasing certain specified semiautomatic firearms. The program includes classroom instruction, practical exercises, and a written examination designed to educate firearm purchasers on safe handling, storage, transportation, maintenance, and Colorado firearm laws.
Which firearms require the Firearms Safety Course Eligibility Card?
The Colorado Department of Revenue publishes a Specified Semiautomatic Firearms Guidance document that identifies hundreds of firearm models and firearm series covered under the law. The guidance primarily includes semiautomatic rifles, semiautomatic detachable-magazine shotguns, and certain frames, receivers, and weapons parts kits associated with specified semiautomatic firearms.
Does every semiautomatic firearm require the Eligibility Card?
No. Not every semiautomatic firearm is covered. Colorado’s law applies only to firearms meeting the statutory definition of a Specified Semiautomatic Firearm. Always review the current Department of Revenue guidance before purchasing a firearm.
Does every AR-15 require the Firearms Safety Course Eligibility Card?
Many AR-15 style rifles are included in Colorado’s guidance. However, because AR-platform firearms are highly customizable, the Department of Revenue notes that firearms configured to meet the statutory definition may still be covered, even if they differ slightly from listed models.
Are AR-10 rifles included?
Yes. Numerous AR-10 style rifles appear throughout Colorado’s published guidance.
Are AK-pattern rifles included?
Yes. The official guidance includes many AK-pattern rifles and similar semiautomatic firearm platforms.
Are semiautomatic .22 rifles included?
Some are. Many people are surprised to learn that Colorado’s guidance includes several semiautomatic .22 LR rifle models and firearm series. Always verify your specific firearm before purchasing.
Are tactical shotguns included?
Yes. Colorado’s guidance includes many semiautomatic detachable-magazine shotguns manufactured by numerous companies.
Are stripped lower receivers covered?
Colorado law states that frames, receivers, and weapons parts kits for specified semiautomatic firearms are also considered specified semiautomatic firearms. If you’re purchasing a stripped receiver or similar component, review the current guidance and consult your dealer if you have questions.
What if my firearm isn’t specifically listed?
Colorado’s guidance is intended to help identify covered firearms, but the Department also explains that highly customizable firearm platforms may still fall under the law if they meet the statutory definition. If you’re uncertain, consult your licensed firearm dealer before purchasing.
How do I apply for a Firearms Safety Course Eligibility Card?
Applicants must submit an application through Colorado’s Firearms Safety System, complete the required background check process through their county sheriff, pay the applicable fees, and receive approval before completing the required Firearms Safety Course.
Do I take the Firearms Safety Course before or after receiving my Eligibility Card?
Under Colorado’s current process, you first apply for and receive your Firearms Safety Course Eligibility Card. After your application is approved, you complete the required Firearms Safety Course and written examination before purchasing a covered firearm.
What is the difference between the 4-hour and 12-hour Firearms Safety Course?
Applicants who possess qualifying Hunter Education certification may be eligible for the 4-hour Basic Firearms Safety Course. Individuals who do not qualify must complete the 12-hour Extended Firearms Safety Course, which includes additional classroom instruction and practical exercises over at least two days.
Is live-fire required?
No. Colorado’s Firearms Safety Course does not require live-fire shooting. However, students must complete required hands-on practical exercises and successfully pass the written examination.
What score do I need to pass the written examination?
Students must achieve a minimum score of 90% on the required written examination to successfully complete the Firearms Safety Course.
How long is the Firearms Safety Course Eligibility Card valid?
The Firearms Safety Course Eligibility Card is valid for five years unless suspended, revoked, or otherwise affected under Colorado law.
Can I use my Colorado Concealed Handgun Permit instead of taking the Firearms Safety Course?
No. A Colorado Concealed Handgun Permit does not replace the Firearms Safety Course requirement. If you’re purchasing a firearm covered under Colorado’s Specified Semiautomatic Firearms law, you must comply with the Firearms Safety Course Eligibility Card requirements unless another statutory exemption applies.
Can I purchase a firearm immediately after completing the course?
After successfully completing the Firearms Safety Course, your instructor records your completion in Colorado’s Firearms Safety System. Your firearm dealer will verify your eligibility before completing the transfer of a covered firearm.
What happens if I fail the written examination?
Students who do not achieve the required passing score must follow the course provider’s policies regarding retesting or additional instruction before successfully completing the course.
Does the official firearm list change?
Yes. The Colorado Department of Revenue reviews and updates the Specified Semiautomatic Firearms Guidance as needed. Before purchasing any firearm, always verify you’re using the most current version of the guidance.
Where can I take a Colorado Firearms Safety Course?
Concealed Carry Classes of Denver offers Colorado-approved 4-hour and 12-hour Firearms Safety Courses taught by Verified Firearms Safety Program Instructors. Our courses provide the training required under Colorado law while helping students understand firearm safety, state regulations, and the Firearms Safety Course Eligibility Card process from start to finish.
Disclaimer
The information on this page is provided for educational purposes only and is not legal advice. Colorado firearm laws and the Department of Revenue’s Specified Semiautomatic Firearms Guidance may change. Always review the most current official guidance and consult your licensed firearm dealer or legal counsel if you have questions about a specific firearm or your eligibility.
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