Texas Judge Rules ATF 'Ghost Gun' Rule Unconstitutional, Blocks It for Defense Distributed and Second Amendment Foundation Members

A Word the Statute Never Defines

A federal judge in Fort Worth has ruled that a rule the Supreme Court upheld 17 months ago is unconstitutional anyway — just not for everyone.

Chief U.S. District Judge Reed O'Connor granted summary judgment to Defense Distributed and the Second Amendment Foundation on Tuesday, August 18, though Reuters dated the ruling a day earlier, Monday^[1][2][3][4]. He found that ATF's 2022 "ghost gun" rule violates the Second Amendment and is too vague to meet the Fifth Amendment's due process guarantee^[1][2]. He then blocked the government from enforcing it against the plaintiffs and Second Amendment Foundation members, covering a specific list of parts and kits^[2][3].

That word "vague" is doing real work here, not just legal boilerplate. The rule says a partly finished gun frame counts as a regulated firearm once it can be "readily" turned into a working one^[10]. Nobody defines "readily" in the statute. ATF offers eight factors to help sellers guess, but the agency says the list isn't even complete^[2][3]. O'Connor's opinion says that leaves a small manufacturer machining a part with no way to know, in advance, whether selling it is a federal felony^[2][3].

This is the same rule, the same judge, and largely the same case that reached the Supreme Court last year — and lost.

The Same Rule, Twice, Two Different Questions

In March 2025, the Supreme Court ruled 7-2 in Bondi v. VanDerStok that ATF's rule was a lawful reading of the Gun Control Act^[8][9]. That ruling reversed O'Connor himself, who had struck the rule down the first time around^[1][8]. But the justices were narrowly answering a statutory question: did Congress give ATF the authority to write this rule at all? They explicitly did not decide whether the rule was constitutional^[8][9]. That gap is what O'Connor stepped into this time, ruling on the Second and Fifth Amendment claims the Supreme Court left untouched^[1][2].

He didn't hand the plaintiffs a full win. He rejected their separate claim that ATF violated the Administrative Procedure Act, finding the agency had adequately explained why it changed its rules in 2022^[2]. So the order is narrower than "the rule is dead." It declares the rule unconstitutional specifically as applied to Second Amendment Foundation members, and it bars enforcement against Defense Distributed, the Foundation, and the Foundation's members — but only as to named products: the M1911 80% frame and the G80 build kit, unfinished receiver, and grip module^[2][3].

That distinction — a party-specific injunction, not a nationwide vacatur — is the single most misreported detail in this story, and it matters because of who else can walk through the door it opened.

A Membership Card as a Legal Shield

The Second Amendment Foundation's relief covers not just its current members but its future ones too^[2][3]. Since anyone can join, gun-control groups argue the practical reach of this order looks a lot bigger than a case naming a handful of plaintiffs normally would^[1]. That's the mechanism behind Giffords' warning that people legally barred from owning a gun could now buy one of these covered kits with no background check^[1].

Everytown Law's Eric Tirschwell called the ruling "egregiously wrong" and urged the Justice Department to appeal quickly^[1]. Their strongest evidence isn't rhetoric — it's ATF's own trace data. Suspected privately made firearms recovered by police rose from 1,629 in 2017 to 27,490 in 2023, a roughly seventeenfold jump over six years, with about 1,700 of those recoveries linked to homicides^[14]. That count relies on inconsistent local reporting, so treat it as a floor, not a precise census^[14]. Still, city and state data separately show recoveries falling after the 2022 rule took effect, which is the trend gun-control groups say this ruling threatens to reverse^[11].

Gun-rights groups counter that none of this touches a much older, uncontested fact: Americans have long been allowed to build a gun at home for personal use, with no serial number required, as long as they're legally allowed to own one^[10][11]. What's actually in dispute isn't home gunsmithing. It's whether a business can sell a nearly finished part in a box — one that becomes a working pistol in a short afternoon of work — without a license, a serial number, or a background check on the buyer^[10]. Traceability is the whole point of that requirement: a serial number is what lets ATF trace a gun found at a crime scene back through a dealer to whoever first bought it^[10][14]. Take the number off, and that trail ends.

The Defendant Nobody Expected

Here's the detail that scrambles the story most headlines are telling. In April 2026, the Trump Justice Department reviewed this Biden-era rule and chose to keep it in place, rather than rewrite or drop it^[12][13]. That's who was in the courtroom defending the rule O'Connor just struck down for a subset of plaintiffs.

The department's reasoning is less about gun politics than litigation strategy. The Supreme Court had just upheld the rule's legal foundation in 2025; reopening the rulemaking would likely trigger fresh lawsuits over ground the Court had already settled^[9][12]. On the merits, the government's position is that the rule targets commercial sellers, not home builders, and that ATF has issued guidance letting companies ask before they sell to avoid exactly the vagueness problem O'Connor flagged^[2][10].

Right-leaning outlets covering this ruling overwhelmingly framed it as "Biden's rule" being blocked — the Daily Caller's headline is typical^[5]. That framing skips the part where a Republican administration spent months defending the same rule in court^[12][13]. The Center for Square's coverage, by contrast, centered the winning plaintiff rather than the legal holding, which reads as more neutral but pushes the regulatory stakes out of the picture^[15]. Reuters' wire account was the most restrained of the coverage reviewed, though it also left the injunction's actual scope — named parties and products, not a nationwide strike-down — mostly unresolved for readers^[1][2].

What the Ruling Doesn't Settle

One outlet, the gun-industry trade press at Ammoland, got the scope right in its own headline, naming the specific products and the SAF-member limit that most mainstream coverage skipped^[2]. That precision came from a source with the least interest in overstating a win it could describe exactly.

Several states have their own ghost-gun laws that this federal ruling doesn't touch, so the practical map after this decision is patchy depending on where you live^[11]. And nothing here is final. The Justice Department still has to decide whether to appeal to the Fifth Circuit — the same appeals court whose earlier ruling in this fight the Supreme Court already reversed once^[1][8]. Gun-control groups have publicly called for that appeal, putting an administration that already chose to defend this rule once back on the spot to decide whether to defend it again^[1].