Final Rule 2021R-08F Deadline Approaching

Final Rule 2021R-08F Deadline Approaching

Notification: Compliance With ATF Final Rule 2021R-08F

ATF final rule 2021R-08F Stabilizing Braces

On January 13, 2023, the Attorney General signed ATF final rule 2021R-08F, “Factoring Criteria for Firearms with Attached ‘Stabilizing Braces,’” amending the regulatory definition of “rifle” to clarify when a firearm is designed, made, and intended to be fired from the shoulder. The final rule took effect on January 31, 2023, the date it was published in the Federal Register. Affected persons have 120 days from the date of publication to come into compliance, which is May 31, 2023. The compliance options provided under the final rule are the following:

  • Remove the short barrel and attach a 16-inch or longer rifled barrel to the firearm,
  • Permanently remove and dispose of, or alter, the “stabilizing brace” such that it cannot be reattached,
  • Turn the firearm into your local ATF office,
  • Destroy the firearm,
  • Register the firearm tax-free by May 31, 2023.

The option to register the firearm tax-free pursuant to ATF Final Rule 2021R-08F will be discontinued in the eForms System effective May 31, 2023, at 11:59 p.m. (ET).
For additional information regarding the final rule, including instructions on how to register your firearm, please visit Factoring Criteria for Firearms with Attached “Stabilizing Braces” | Bureau of Alcohol, Tobacco, Firearms and Explosives (

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  • Michael Hodgdon

    A firearm, shooting, outdoor, and hunting enthusiast for over 35 years. Thank you all for the suggestions on topics you would like to see; we'll keep posting as you keep sending them in. Please comment; we will try to answer all comments quickly.

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