Colorado’s New Semi-Automatic Firearm Law, Explained
Starting August 1, buying most semi-automatic rifles in Colorado requires a sheriff-issued eligibility card and an in-person safety course. Here’s what’s covered, what isn’t, and how to buy before — and after — the deadline.
Want one the simple way? Buy in-store before July 27.
Buy a covered semi-auto from us in-store under today’s rules — no eligibility card, no safety course — and the sale just has to be finished before the law takes effect on August 1. Because of background-check and waiting-period timing, Monday, July 27 is our last day to start an in-store sale on these. After that, in-store buyers follow the new state process below.
What the law does
Senate Bill 25-003 prohibits manufacturing, distributing, transferring, selling, or purchasing a Specified Semiautomatic Firearm (SSF) in Colorado on or after August 1, 2026, unless the buyer has completed a new state eligibility-and-training process. It does not ban ownership, and it does not touch firearms you already have.
What’s covered — and what isn’t
Covered
- Semi-automatic rifles with a detachable magazine
- Semi-automatic shotguns with a detachable magazine
- Gas-operated semi-auto handguns with a detachable magazine
Not covered
- Bolt, pump, lever & slide actions
- Rimfire .22 or smaller (unless separate upper & lower)
- Fixed magazines of 15 rounds or fewer
- Recoil-operated handguns — most semi-auto pistols
- Permanently inoperable guns; qualifying antiques & C&R
Already own a covered firearm?
You’re unaffected. SB25-003 applies only to purchases and transfers on or after August 1, 2026. Anything lawfully in your possession before that date is grandfathered — no card, no course, no registration required to keep it.
How to buy an SSF after August 1
Each step unlocks the next: the card unlocks the course, and the certificate unlocks the purchase.
Apply through your county sheriff’s office. Submit the online application with a government photo ID and a completed name-based background check. If approved, the sheriff issues your Firearms Eligibility Card — which is what makes you eligible to take the course. An application fee applies whether or not you’re approved.
Complete the safety course and get your certificate. With your card, you sign up with a sheriff-verified instructor. The course is in-person only and you must pass the exam at 90% or better. Your certificate is what makes you eligible to buy — and it’s good for five years.
Buy through an FFL. Bring your card and certificate to a licensed dealer (that’s us). We confirm your course in the state system, run the CBI InstaCheck, and complete the transfer under all applicable state and federal law, including waiting periods.
The safety course — and the hunter-ed shortcut
Get your Colorado hunter-education card first.
A CPW hunter-education card does not exempt you — you still take a safety course. But it changes which course you owe:
| Have a hunter-ed card | 4-hour Basic firearms safety course |
| No hunter-ed or prior course | 12-hour Extended course, across at least two days |
Either way you pass at 90%, and your hunter-ed credentials must be verified in CPW’s system. So step one for most people: knock out hunter education through Colorado Parks & Wildlife, then take the short course.

Get first notice when class dates open.
A local instructor is setting up the required safety course. Get on our SB25-003 class list and we’ll email you the dates, locations, and how to sign up.
Buying online from us
Nothing changes with our online store. We continue to list and ship these firearms to your FFL nationwide, exactly as before. Colorado simply joins the list of states (like New York and California) where extra steps apply at transfer. Colorado residents completing a transfer after August 1 go through the eligibility-card and course process at the receiving FFL; out-of-state customers see no change at all.
Quick reference
| Effective date | August 1, 2026 |
| Our last in-store sale (old rules) | Monday, July 27, 2026 |
| Covered | Semi-auto rifles/shotguns with detachable mags; gas-operated semi-auto handguns with detachable mags |
| Not covered | Bolt/pump/lever/slide; .22 rimfire (no separate receivers); fixed mags ≤15; recoil-operated handguns; qualifying antiques/C&R |
| The sequence | Sheriff eligibility card → safety course (90%) → certificate → buy at FFL |
| Course length | 4-hour Basic (with hunter-ed) or 12-hour Extended (without) |
| Course validity | 5 years |
| Already own one? | Unaffected — grandfathered |
Frequently asked questions
Is Colorado banning AR-15s?
What’s the deal with July 27 versus August 1?
Does a hunter-education card mean I can skip the course?
Which comes first — the course or the sheriff?
I already own a covered rifle. Do I need to do anything?
Are handguns affected?
Are .22 rifles covered?
Can I still buy from your website after August 1?
How long is the safety course good for?
How much does all of this cost?
Does a concealed-carry permit (CCW) count?
Where’s the official information?
Beat the deadline — or get on the class list.
Shop in-store before July 27 to buy under today’s rules, or sign up above and we’ll walk you through the new process when classes open.
This page is general information for our customers and is not legal advice. Senate Bill 25-003 and its implementation details are subject to change as Colorado Parks & Wildlife, the Department of Revenue, and county sheriffs finalize rules and fees. Verify all specifics with Colorado Parks & Wildlife (cpw.state.co.us) and your county sheriff before relying on them. Elk River Guns · 28610 US Hwy 40, Steamboat Springs, CO.