DraftDraft definitions, under editorial review. Informational content is not legal advice.
Draftfederal rulemaking history
Final Rule 2021R-08F was ATF’s 2023 rule concerning firearms equipped with stabilizing braces and their classification under the federal rifle definition. [1] ATF later reported that a court vacated the rule nationwide on administrative-law grounds. [2] In May 2026, ATF proposed removing the two regulatory paragraphs added by the rule, and its September 25, 2026 reform page still identified this as a proposed action. [1][3] The vacated rule, pending proposal, and underlying statutory definitions therefore represent different kinds of legal authority. [1][2]
- 1. ATF: Proposed removal of stabilizing-brace criteria, May 6, 2026retrieved 2026-10-04
- 2. ATF: Notice concerning applications under the 2023 brace ruleretrieved 2026-10-04
- 3. ATF: Regulatory repeal proposals, updated September 25, 2026retrieved 2026-10-04
See also
- stabilizing braceDraft
A stabilizing brace is an accessory discussed in ATF’s firearm-classification rules; the accessory’s name alone does not determine whether an attached firearm satisfies the statutory rifle definition.
About this glossary
This entry is one of 153 defined terms in the CalGunHub glossary of California and federal firearm-law vocabulary. The 11 core terms are short plain-English definitions; the extended terms are cited research drafts, labelled as drafts, with their statutory sources listed under each entry. Every definition here is informational only and is not legal advice.
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