Do I need to do anything about firearms I already own?
The short answer
Firearms already possessed before August 1, 2026 are not affected by this law.
SB25-003 does not prohibit possession. Its requirements attach to a purchase or transfer on or after the effective date (2026-08-01) — not to what is already in your safe. There is no registration step, no surrender step, and no deadline for existing owners in this law.
One part of the same act works differently, and it is the exception worth knowing: rapid-fire devices.
This is an informational summary, not legal advice. Confirm your own situation with your FFL or a Colorado attorney before acting on anything here.
What actually triggers the requirement
Understanding why possession is unaffected is easier from the mechanism than from the reassurance. The law adds a condition to a transaction:
From August 1, 2026, buying a specified semiautomatic firearm from a licensed dealer requires a firearms safety course eligibility card — issued by a county sheriff after a background check — plus a qualifying safety course.
The eligibility card and the safety course are prerequisites a buyer brings to a dealer counter. If no covered purchase or transfer is happening, nothing in that sequence applies to you. Which firearms are covered is defined by characteristics:
The act defines a specified semiautomatic firearm as a semiautomatic rifle or semiautomatic shotgun with a detachable magazine, or a gas-operated semiautomatic handgun with a detachable magazine, with specific firearms and models excluded.
If the gun you own is on the state's list
Appearing on the published list does not change the status of a firearm already possessed. The list is a guidance document attached to the purchase requirement, not a schedule of prohibited property:
The state publishes a list of covered makes and models as guidance. The definition is characteristics-based, so the list is non-exhaustive and is updated on an ongoing basis; the statute controls.
The same is true in reverse: a model's absence from the list is not a ruling that it falls outside the definition. To see whether a specific make and model appears on the current list, use thefirearm lookup; to read the list itself with its version and source PDF, see the Colorado SSF list.
The exception: rapid-fire devices
SB25-003 covers two different things, and only one of them is the purchase process described above. The device provisions are not structured the same way:
Rapid-fire devices (for example bump stocks and binary triggers) were classified as dangerous weapons when the governor signed the bill, April 10, 2025. No grandfather provision applies.
That is a separate provision with a separate effective date, and it is the one place in this act where “I already had it” is not the end of the question. Every tracked date for both halves of the law is onthe key-dates page.
Does a concealed handgun permit change this?
A Colorado concealed handgun permit (CHP, informally CCW) neither creates nor removes any requirement for firearms you already own — the possession answer above is the same with or without one. It also does not carry over if you later buy a covered firearm:
Background checks and courses completed for a concealed handgun permit (CHP/CCW) do not count toward this program.
The permit process itself is covered onthe Colorado CCW/CHP page.
What this page does not cover
The answer above is about continuing to possess a firearm you already had. These are different questions, and the state has not published guidance answering all of them. This page does not answer them, and silence here is not an answer:
- Moving to Colorado with firearms bought elsewhere, and buying out of state as a Colorado resident.
- Private transfers, gifts, and inheritance — what happens when an already-owned firearm changes hands other than through a dealer sale.
- Firearms you assemble or reconfigure yourself. Two state-guidance gaps are already tracked onthe purchase-pipeline page:State guidance describes buying from a licensed dealer. It does not address firearms assembled by their owner — for example, a short-barreled rifle completed under an ATF Form 1 after August 1, 2026.State materials do not address configuration changes to a handgun that is not on the list — for example, installing a serialized fire-control unit in a chassis system. Some list entries distinguish braced and non-braced configurations of the same model; no published rule covers models the list does not name.
For a fact-specific situation, ask a Colorado attorney. If you have a published state source that answers one of these, send it throughcorrections and it can be added with its provenance.
Where to go from here
- SB25-003 in plain English — what the law requires overall, and what it does not change.
- The purchase pipeline — if you do want to buy a covered firearm, the eligibility-card and course sequence step by step.
- Firearm lookup — whether a specific make and model appears on the current state list.
- What SB25-003 exempts — the statutory categories outside the specified-semiautomatic-firearm definition.