Of all the questions we get, this might be the easiest one to answer with a flat no: revolvers have nothing to do with SB25-003. Not the recoil-operated exception, not the gas-operated definition — none of it applies, because a revolver isn't a "semiautomatic firearm" in the first place.
Why, precisely
C.R.S. 18-12-101(1)(g.8) defines "semiautomatic firearm" as a firearm that, upon initiating the firing sequence, fires the first chambered cartridge and "uses a portion of the energy of the firing cartridge to extract the expended cartridge case, chamber the next round, and prepare the firing mechanism to fire again." A revolver doesn't do any of that. Firing one round doesn't eject a case, load the next one, or reset anything using the energy of that shot — the next chamber comes into position because the shooter (or, on a single-action, the shooter's thumb on the hammer) manually rotates the cylinder through the trigger pull or hammer cock. Nothing about that process is powered by the fired cartridge.
Since a revolver fails the basic "semiautomatic firearm" definition entirely, it can't be a "specified semiautomatic firearm" either — the SSF category is built entirely on top of that underlying term. There's no need to even ask whether a revolver is gas-operated or recoil-operated, because the analysis never gets that far.
Why this is worth saying out loud anyway
People sometimes conflate "semiautomatic" with "not a revolver, so it must count" — understandable, since a lot of gun-control conversations lump semiautomatics and revolvers into the same general "modern firearm" bucket. Colorado's statute doesn't work that way. It's built entirely around detachable magazines and cycling mechanisms, both of which are foreign concepts to a revolver's design.
Bottom line
Buying, selling, transferring, or owning a revolver in Colorado — a Smith & Wesson 686, a Ruger GP100, a Colt Python, anything with a cylinder — isn't affected by SB25-003 in any way. The existing rules (background check, waiting period, age 21) still apply the same as they always have, but none of the new eligibility-card or safety-course requirements come into play.
As always, we are not lawyers — just Colorado citizens trying to understand the new law and share what we learn. The information on this website is for general informational purposes only and does not constitute legal advice, nor does it create an attorney/client relationship. The accuracy, completeness, or currency of the content is not warranted. Your use of content on this website is at your own risk. Consult an attorney about your specific circumstances.
