9th Circuit Rejects California's Challenge to ATF's 'Ghost Gun' Carve-Out

California and Giffords lost standing to block a federal carve-out that lets unfinished AR-15-style receivers avoid serial numbers and background checks.

Sources checked September 13, 2026. Educational information only, not legal advice.

What changed	Ninth Circuit vacated a lower-court order that had voided ATF’s “Example 4” carve-out for unfinished receivers. California and Giffords dismissed for lack of standing.
Effective	Aug 21, 2026 (decision filed)
Applies to	Everyone in California who buys or assembles 80% or unfinished lower receivers for AR-15-type firearms.
Statutory basis	27 C.F.R. § 478.12(c), Example 4; case No. 24-2701

What happened

The Ninth Circuit held that California and the Giffords Law Center to Prevent Gun Violence lacked Article III standing to challenge ATF’s “Example 4” under the 2022 frame-and-receiver rule. The rule lets unfinished receivers — such as un-machined blanks, sold without jigs, tools, or completion instructions — escape federal background checks, serial numbers, and FFL transfer requirements.

The panel, 3-0, vacated and remanded with instructions to dismiss the case without prejudice. Judge Callahan wrote that plaintiffs failed to establish an injury caused by Example 4 because their evidence speaks to the problem of ghost guns generally, offering no data regarding the specific unregulated products subject to Example 4. The result: the carve-out that lets many 80% or unfinished AR-style receivers slip through without a background check is not overturned. For California gun owners, this means the status quo stays for now, but the Ninth Circuit’s reasoning means a future challenge would have to point to injuries traceable specifically to Example 4 products — not ghost guns in the abstract.

What it means for you

The federal carve-out is upheld, but California can, and does, impose its own requirements on firearm precursor parts. State restrictions on 80% receivers and ghost guns are separate from this federal ruling. If you buy, sell, or transfer unfinished or un-machined lower receivers in California, you should still check California’s current laws and the DOJ precursor-parts rules. A future challenge could try to reach the carve-out again, so this is not the last word. For now, no California-specific change was made by this decision.