State Legality MatrixPistol BracesColorado
Statute-cited, last verified 2026-08-04
Restricted
Restricted. Buying or transferring a braced gas-operated semi-automatic handgun requires a sheriff-issued eligibility card. Effective 2026-08-01.
Controlling law: Colo. Rev. Stat. § 18-12-116 (SB25-003)
Contested entry
Colorado regulates the host, not the brace. The covered class is a gas-operated semiautomatic handgun with a detachable magazine, and the statute expressly folds blowback operation into gas-operated, so braced direct-impingement AR pistols and braced blowback PCC pistols are both caught while recoil-operated handguns such as Glocks and 1911s are excluded. This is a purchase and transfer eligibility requirement, not a possession ban: anything lawfully owned before August 1, 2026 is untouched and there is no registration. Colorado has no state short-barreled rifle ban, so a Form 1 remains available, and the 15-round magazine cap applies to either configuration.
Federal law
The 2023 ATF stabilizing-brace rule was vacated nationwide and is not enforced, but that does not categorically make every brace-equipped firearm a pistol. Under 26 U.S.C. § 5845, federal classification still turns on whether the specific weapon is designed and intended to be fired from the shoulder. A brace-equipped firearm that meets the short-barreled-rifle definition requires NFA approval and registration; a configuration that remains a pistol does not. Building an actual short-barreled rifle is still an NFA act: Form 1, fingerprints, CLEO notification, a NICS check, and registration all apply. The federal making tax has been $0 since January 1, 2026 under the One Big Beautiful Bill Act, and eForm approvals currently run days to a couple of weeks.
Scope: Pistol stabilizing braces (SB Tactical, Maxim Defense, A3 Industries and similar) and the braced pistols they mount on. Short-barreled rifles and state assault-weapon feature tests are tracked as separate classes.
Common questions
Restricted. Buying or transferring a braced gas-operated semi-automatic handgun requires a sheriff-issued eligibility card. Effective 2026-08-01. Controlling law: Colo. Rev. Stat. § 18-12-116 (SB25-003).
The controlling law is Colo. Rev. Stat. § 18-12-116 (SB25-003). Buying or transferring a braced gas-operated semi-automatic handgun requires a sheriff-issued eligibility card.
Colorado's rule took effect 2026-08-01. Colorado regulates the host, not the brace. The covered class is a gas-operated semiautomatic handgun with a detachable magazine, and the statute expressly folds blowback operation into gas-operated, so braced direct-impingement AR pistols and braced blowback PCC pistols are both caught while recoil-operated handguns such as Glocks and 1911s are excluded. This is a purchase and transfer eligibility requirement, not a possession ban: anything lawfully owned before August 1, 2026 is untouched and there is no registration. Colorado has no state short-barreled rifle ban, so a Form 1 remains available, and the 15-round magazine cap applies to either configuration.
The 2023 ATF stabilizing-brace rule was vacated nationwide and is not enforced, but that does not categorically make every brace-equipped firearm a pistol. Under 26 U.S.C. § 5845, federal classification still turns on whether the specific weapon is designed and intended to be fired from the shoulder. A brace-equipped firearm that meets the short-barreled-rifle definition requires NFA approval and registration; a configuration that remains a pistol does not. Building an actual short-barreled rifle is still an NFA act: Form 1, fingerprints, CLEO notification, a NICS check, and registration all apply. The federal making tax has been $0 since January 1, 2026 under the One Big Beautiful Bill Act, and eForm approvals currently run days to a couple of weeks.