Possession Bans Are Not “Commercial Sale” Conditions: Standing and Second Amendment Framework for Colorado’s Unserialized-Firearm Prohibitions

I. Introduction

In National Association for Gun Rights v. Polis (10th Cir. Apr. 23, 2026), the Tenth Circuit reviewed a preliminary-injunction appeal challenging Colorado Senate Bill 23-279, codified at Colo. Rev. Stat. § 18-12-111.5. The law prohibits the possession, purchase, sale, transfer, and transportation of certain unserialized firearms, frames/receivers, and “firearm parts kits,” and also prohibits most individuals from “manufacturing” frames or receivers.

Plaintiffs—three individual Colorado gun owners and two gun-rights associations (National Association for Gun Rights and Rocky Mountain Gun Owners)—alleged the statute violates the Second Amendment, particularly as applied to “privately made firearms” (PMFs) assembled from parts kits. The district court (i) found standing only for one plaintiff’s possession-based challenge, (ii) dismissed future-acquisition claims as unripe due to an overlapping federal ATF serialization rule, and (iii) dismissed manufacturing claims for lack of standing. On the merits, it denied preliminary relief after treating the possession ban as a presumptively constitutional “condition or qualification on the commercial sale of arms.”

The Tenth Circuit affirmed in part, reversed in part, and remanded, clarifying both Article III justiciability (especially redressability in the face of independent federal regulation) and the proper characterization of possession prohibitions under the Second Amendment.

II. Summary of the Opinion

  • Standing—Possession claims: Affirmed. Plaintiff Richardson had standing to seek prospective relief based on continued possession of unserialized items.
  • Standing—Acquisition claims: Reversed. The district court erred by treating the ATF rule as a ripeness problem; the correct inquiry was redressability. Plaintiffs plausibly alleged purchases that would comply with federal law yet be blocked by Colorado law (notably private-party transactions), satisfying redressability.
  • Standing—Manufacturing claims: Affirmed dismissal. Properly interpreted, § 18-12-111.5(5)(a)(I) does not prohibit plaintiffs’ intended conduct of completing/assembling kits into PMFs; thus, no injury in fact.
  • Preliminary injunction merits: Reversed the district court’s core merits framing. A possession ban is not a “condition or qualification on the commercial sale of firearms” under District of Columbia v. Heller; the district court abused discretion by denying relief on that basis without the required N.Y. State Rifle & Pistol Ass'n, Inc., v. Bruen historical-tradition analysis.
  • Remand: The district court must address the merits under the correct framework and consider acquisition claims as well.

III. Analysis

A. Precedents Cited

1. Standing fundamentals and pre-enforcement posture

The court grounded Article III standing in the familiar tripartite test reiterated in FDA v. All. for Hippocratic Med. (citing Summers v. Earth Island Inst. and Lujan v. Defs. of Wildlife): injury in fact, causation, and redressability. For injunctions and pre-enforcement suits, it invoked:

  • Colo. Cross Disability Coal. v. Abercrombie & Fitch Co. (with Tandy v. City of Wichita) for the “real and immediate threat” requirement.
  • Susan B. Anthony List v. Driehaus (quoting Babbitt v. United Farm Workers Nat. Union) for the three-part pre-enforcement showing: intent to engage in constitutionally implicated conduct, the conduct being proscribed, and a credible threat of enforcement.
  • Rocky Mountain Gun Owners v. Polis (10th Cir. 2024) for credible-threat analysis where the state has not disavowed enforcement.

Notably, the panel emphasized that standing analysis does not decide the Second Amendment merits: citing Smith v. Albany Cnty. Sch. Dist. No. 1 Bd. of Trs. (quoting Initiative & Referendum Inst. v. Walker), it “assume[s]” legal validity rather than “open[ing] the door” to merits.

And because one plaintiff’s standing suffices, the court relied on Biden v. Nebraska (citing Rumsfeld v. F. for Acad. and Institutional Rts., Inc.) to avoid deciding whether the other individuals also had standing for the same claim.

2. Ripeness vs. redressability when federal law overlaps state restrictions

The district court treated the federal ATF serialization rule as making acquisition claims “unripe.” The Tenth Circuit reframed the issue using:

  • United States v. Cabral (quoting Tex. Brine Co. v. Occidental Chem. Corp.) for ripeness as a guard against premature adjudication.
  • S. Utah Wilderness All. v. Palma (citing Morgan v. McCotter) and United States v. Sup. Ct. of N.M. (quoting Kan. Jud. Rev. v. Stout) for the distinction: standing addresses proper parties; ripeness is timing.

The court reasoned that the real question was whether a federal court could still provide effective relief—a redressability inquiry—despite an “unchallenged legal obstacle.”

3. Redressability and the “unchallenged legal obstacle” doctrine

The opinion’s key justiciability move comes from the circuit’s recent standing cases:

  • We the Patriots, Inc. v. Grisham (quoting Bishop v. Smith) for the principle that an independent, unchallenged, separately enforceable restriction can defeat redressability.
  • Rocky Mountain Gun Owners v. Polis (10th Cir. 2024) as an application: even with overlapping federal limits, plaintiffs may show redressability by identifying lawful purchases still blocked by state law.
  • Nova Health Sys. v. Gandy (citing Larson v. Valente) for the proposition that plaintiffs need only show relief for a “discrete injury,” not all injuries.

Applied here, the ATF Final Rule regulated commercial sellers but, per the Federal Register discussion cited by the panel, did not “reach as far as Colorado’s law” because it was “inapplicable to private individuals” in key respects. That difference left room for state law to impose an additional, judicially redressable burden—particularly on private-party acquisition routes.

The court also addressed appellate preservation in a footnote, relying on United States v. Lowe (quoting United States v. Hernandez-Rodriguez) to allow review where the district court raised an issue sua sponte, and on Herrera v. City of Espanola (citing Schell v. Chief Just. & Justs. Of Okla. Sup. Ct.) for the “waived the waiver” concept when the appellee does not press forfeiture.

The dissent (Kelly, J.) disputed acquisition standing and cited Richison v. Ernest Group, Inc. on forfeiture and Rollins v. Home Depot USA, Inc. on limits of “waiver of waiver” where record development is lacking, underscoring that this portion of the majority’s standing analysis may be contested in later litigation.

4. Statutory interpretation (Colorado “manufacture” vs. “complete/assemble/convert”)

For manufacturing standing, the panel’s holding turned on interpretation of § 18-12-111.5(5)(a)(I) and the definitional provisions. It followed Colorado interpretive rules:

  • People Int. of G.S.S. (citing People v. Iannicelli) for plain-language primacy and harmonious reading.
  • Godinez v. Williams (citing McCoy v. People) for ending analysis if unambiguous, otherwise considering consequences, purpose, and history.
  • Rocky Mountain Gun Owners v. Polis (Colo. 2020) (citing Scalia & Garner) for the presumption of consistent usage and significance of materially different terms.
  • St. Vrain Valley Sch. Dist. RE-1J v. A.R.L. by & through Loveland (quoting Graham Cnty. Soil & Water Conservation Dist. v. United States ex rel. Wilson) for noscitur a sociis.

The statute defined an “unfinished frame or receiver” as an “article that has reached a stage in manufacture” that may readily be “completed, assembled, or converted.” The court treated this terminological contrast as decisive: the legislature labeled the upstream creation as “manufacture,” but the downstream activity plaintiffs wanted to do as “complete/assemble/convert.” It therefore held the manufacturing prohibition does not proscribe plaintiffs’ conduct; without proscription, there is no injury in fact under Susan B. Anthony List v. Driehaus.

The court also noted that the State’s position could qualify as a “credible disavowal” relevant to pre-enforcement standing, citing Baker v. USD 229 Blue Valley (citing United States v. Sup. Ct. of N.M. and Consumer Data Indus. Ass'n v. King), though it did not need to rely on that alternative rationale.

5. Preliminary injunction standards and the Second Amendment framework

On the injunction posture, the court applied:

  • Diné Citizens Against Ruining Our Env't v. Jewell (citing Wilderness Workshop v. BLM) for abuse-of-discretion review.
  • Schrier v. Univ. of Colo. for the “extraordinary remedy” and “clear and unequivocal” burden.
  • Hobby Lobby Stores, Inc. v. Sebelius (citing Winter v. NRDC) for the four-factor test; Nken v. Holder for merger of the balance/public-interest factors when the government is the opposing party.

Critically, the panel corrected the district court’s Second Amendment categorization. The district court had relied on District of Columbia v. Heller to treat the law as a presumptively valid “condition or qualification on the commercial sale of arms,” and it did not conduct the historical-tradition analysis required by N.Y. State Rifle & Pistol Ass'n, Inc., v. Bruen. The Tenth Circuit held that was a legal error because the challenged provisions regulate possession “no matter how a person previously acquired” the item.

To reinforce the line between possession restrictions and commercial-sale conditions, the court relied on its intervening circuit precedent Ortega v. Grisham, which explained that a regulation is not a commercial-sale condition if it “has nothing to do with the conduct’s commercial nature.”

B. Legal Reasoning

1. The opinion’s central Article III clarification: “Ripeness” was the wrong tool

The district court’s ripeness approach effectively assumed that federal regulation eliminated any meaningful controversy over Colorado’s acquisition ban. The Tenth Circuit rejected that premise: the continued existence of the ATF rule does not itself end the case; instead, the question is whether a favorable ruling against Colorado would provide any practical relief.

This shift matters. Ripeness is about when a claim can be adjudicated; redressability is about whether the court’s remedy can address the plaintiff’s harm. By moving the ATF-rule issue to redressability, the panel required a more granular comparison between federal and state law to see whether Colorado adds distinct burdens beyond federal requirements.

2. “Discrete injury” redressability and lawful-intent pleading

The court found redressability because Colorado law allegedly blocked some acquisitions not blocked by federal law—especially private-party acquisition channels—creating a “discrete injury” remediable by enjoining the state provision. The panel then extended its earlier logic in Rocky Mountain Gun Owners v. Polis (10th Cir. 2024): plaintiffs need not plead “granular specificity” about the exact lawful transaction; it was enough that they described themselves as “law-abiding” and expressed an intent to continue acquiring the regulated items while the ATF rule was already in force.

3. Standing failure by statutory scope: the manufacturing prohibition did not cover plaintiffs

On manufacturing, the panel did not decide whether a constitutional right to privately manufacture arms exists. It held only that plaintiffs lacked standing because the statute—read as a whole—did not prohibit the specific conduct they claimed to want: finishing an already-manufactured “unfinished frame or receiver” by completing/assembling/converting it. Without proscription, plaintiffs could not show the injury necessary for a pre-enforcement claim.

4. Second Amendment merits posture: possession restrictions require the proper framework

The panel’s merits holding was narrow but consequential: it did not decide whether the possession or acquisition bans violate the Second Amendment. It held the district court used the wrong legal frame by recharacterizing a possession ban as a commercial-sale condition, thereby bypassing the Bruen inquiry. The case returns to the district court to conduct the appropriate analysis and to consider acquisition claims in the first instance.

C. Impact

1. Litigation strategy: overlapping federal restrictions will be litigated as redressability

The opinion signals that, within the Tenth Circuit, when plaintiffs challenge state firearms regulations in a landscape of overlapping federal firearms rules (such as the ATF’s “frame or receiver” rule discussed in Bondi v. VanDerStok and the procedural history noted in Garland v. Vanderstok), courts should focus on whether state law creates additional, severable burdens that remain judicially remediable. Plaintiffs will likely frame intended conduct to highlight “gaps” between federal and state rules (e.g., private transfers, intrastate noncommercial acquisition, or other channels).

2. Doctrinal guardrail: possession prohibitions cannot be insulated as “commercial sale” regulations

By holding that possession bans are not “conditions or qualifications on the commercial sale of firearms,” the panel limits the government’s ability to invoke Heller’s commercial-sale language to short-circuit Bruen. That is particularly important for laws that criminalize continued possession of previously lawful items.

3. Statutory drafting and enforcement: definitions can narrow or expand constitutional litigation

Colorado’s definitional choice—describing the downstream act as “complete/assemble/convert” rather than “manufacture”—became dispositive for standing. Legislatures drafting “ghost gun” or PMF statutes may respond by aligning operative prohibitions with definitions to avoid similar scope-based standing defeats (or, conversely, to cabin liability).

IV. Complex Concepts Simplified

  • Standing: The constitutional requirement that the plaintiff is the right person to sue—must show a real injury, caused by the defendant, that a court can fix.
  • Ripeness vs. Redressability: Ripeness asks whether it’s too early to decide; redressability asks whether a court order would actually help even if other laws exist.
  • Pre-enforcement challenge: A lawsuit filed before prosecution, allowed when the plaintiff plans to engage in arguably protected conduct, the law bans it, and enforcement is credibly threatened.
  • “Unchallenged legal obstacle”: Another law (often federal) that independently blocks the plaintiff’s conduct; if it blocks everything, the state-law suit may not be redressable.
  • Condition on “commercial sale” (from Heller): A regulation tied to buying/selling firearms in commerce. The panel held a possession ban is not such a condition if it applies regardless of how the item was obtained.
  • Bruen test (as referenced): If the Second Amendment’s text covers the conduct, the government must justify regulation by showing consistency with the Nation’s historical tradition of firearms regulation.
  • Noscitur a sociis: A canon of interpretation meaning a word’s meaning can be informed by surrounding words—here used to read “manufacture” in context with the statute’s examples and definitions.

V. Conclusion

National Association for Gun Rights v. Polis is principally a justiciability and framework decision, not a final Second Amendment merits ruling. It establishes two practical guideposts in the Tenth Circuit: (1) when state firearms restrictions overlap federal rules, courts should evaluate the overlap primarily through redressability, and plaintiffs can proceed if state law still inflicts a remediable “discrete injury”; and (2) a statutory possession prohibition cannot be recast as a mere “condition or qualification on the commercial sale of firearms” to avoid the Bruen historical-tradition inquiry. On remand, the district court must confront the Second Amendment merits under the correct methodology, now with acquisition claims back in play.