Full Opinion

Case: 24-30307 Document: 132-1 Page: 1 Date Filed: 06/18/2026 United States Court of Appeals for the Fifth Circuit ____________ United States Court of Appeals Fifth Circuit FILED No. 24-30307 June 18, 2026 ____________ Lyle W. Cayce United States of America, Clerk Plaintiff—Appellee, versus Brennan James Comeaux, Defendant—Appellant. ______________________________ Appeal from the United States District Court for the Western District of Louisiana USDC No. 6:23-CR-183-1 ______________________________ Before Smith, Clement, and Duncan, Circuit Judges. Jerry E. Smith, Circuit Judge: Brennan Comeaux was charged with possessing an unregistered sil- encer in violation of 26 U.S.C. § 5861(d). He moved to dismiss the indict- ment, asserting that § 5861(d) violates the Second Amendment facially and as applied to him. The district court denied the motion. Comeaux entered a conditional guilty plea that preserved the right to press his constitutional challenge on appeal. While his appeal was pending, a different panel decided United States v. Peterson, 161 F.4th 331 (5th Cir. 2025), cert. denied, 224 L. Ed. 2d 501 Case: 24-30307 Document: 132-1 Page: 2 Date Filed: 06/18/2026 No. 24-30307 (2026), which upheld a § 5861(d) conviction because § 5861(d) did not bur- den the defendant’s Second Amendment rights. Though silencers are Second Amendment “Arms,” Comeaux has not alleged that the National Firearms Act’s (“NFA”) shall-issue regime has been put toward abusive ends. Because Peterson controls, he has therefore not shown that his Second Amendment rights have been violated. We affirm. I. After arresting Comeaux for unlawfully discharging a firearm, sher- iff’s deputies executed a search warrant on Comeaux’s residence, seizing multiple firearms, suspected silencers, and other firearm-related parapher- nalia. The sheriff’s department then contacted the Bureau of Alcohol, Tobacco, Firearms, and Explosives (“ATF”), which determined that the suspected silencers were consistent with a “device for silencing, muffling, or diminishing the report of a portable firearm.” Comeaux admitted to an ATF agent that he manufactured and possessed the silencers. A federal grand jury charged Comeaux with possessing an unregis- tered firearm, in violation of § 5861(d), and possessing a firearm unidentified by a serial number, in violation of § 5861(i). Both counts listed the silencers as the “firearm[s].” Comeaux moved to dismiss the indictment, asserting that § 5861(d) and (i) violates the Second Amendment on its face and as applied to him. The district court denied Comeaux’s motion, explaining that silencers are “dangerous and unusual weapons” that are not protected by the Second Amendment. 1 _____________________ 1 The court assumed, without deciding, that silencers are Second Amendment “Arms.” 2 Case: 24-30307 Document: 132-1 Page: 3 Date Filed: 06/18/2026 No. 24-30307 Comeaux pleaded guilty of possession of unregistered firearms in vio- lation of § 5861(d), reserving the right to press his constitutional challenge on appeal. The district court sentenced Comeaux to 24 months in prison and three years of supervised release. II. We review preserved constitutional questions de novo, United States v. Daniels, 124 F.4th 967, 971 (5th Cir. 2025), petition for cert. filed (June 5, 2025) (No. 24-1248), and unpreserved challenges for plain error only, United States v. Jones, 88 F.4th 571, 572 (5th Cir. 2023) (per curiam). Comeaux raises a facial and as-applied challenge. 2 III. A. The NFA, 26 U.S.C. §§ 5801–5872, requires the registration of stat- utorily defined firearms. See United States v. Cox, 906 F.3d 1170, 1174 (10th Cir. 2018). A “firearm” includes silencers. § 5845(a)(7). “No person shall make a firearm unless” he files “with the [Attorney General] a written appli- cation,” identifies the firearm to be made, identifies himself and provides his fingerprints and photograph, pays a $200 tax, 3 and obtains “the approval of the [Attorney General] to make and register the firearm.” §§ 5821, 5822, 7801(a)(2). It is “unlawful for any person” “to receive or possess a firearm _____________________ 2 The government contends that we may review Comeaux’s as-applied challenge only for plain error because he did not raise it in the district court. But in his motion to dismiss, Comeaux stated that § 5861(d) “violate[s] the Second Amendment on [its] face and as applied to him[.]” The district court ruled on both challenges, holding that § 5861(d) was “lawful both facially and as applied in this case.” Because Comeaux expli- citly raised an as-applied challenge that the district court recognized and adjudicated, he preserved both his as-applied and facial challenges. See Does 1–7 v. Abbott, 945 F.3d 307, 310 n.3 (5th Cir. 2019) (per curiam). 3 Since Comeaux’s arrest, the tax has been decreased to $0. See 26 U.S.C. § 5821. 3 Case: 24-30307 Document: 132-1 Page: 4 Date Filed: 06/18/2026 No. 24-30307 which is not registered to him in the National Firearms Registration and Transfer Record.” § 5861(d). To be valid, however, firearms statutes such as the NFA must comply with the Second Amendment, which protects “the right of the people to keep and bear Arms.” U.S. Const. amend. II. In adjudicating Second Amend- ment claims, courts must employ the two-step analysis in N.Y. State Rifle & Pistol Ass’n v. Bruen, 597 U.S. 1, 24 (2022). Bruen, 597 U.S. at 24, first asks whether “the Second Amendment’s plain text covers an individual’s conduct.” “[T]he Second Amendment extends, prima facie, to all instruments that constitute bearable arms, even those that were not in existence at the time of the founding.” Id. at 28 (quot- ing District of Columbia v. Heller, 554 U.S. 570, 582 (2008)). In the Second Amendment sense, “Arms” comprises “weapons of offence,” “armour of defence,” and “anything that a man wears for his defence, . . . takes into his hands, or useth in wrath to cast at or strike another.” Heller, 554 U.S. at 581 (citation modified). “When the Second Amendment’s plain text covers an individual’s conduct, the Constitution presumptively protects that conduct” and courts proceed to Step 2. Bruen, 597 U.S. at 24. Bruen’s second step asks “whether the challenged regulation is con- sistent with the principles that underpin our regulatory tradition.” United States v. Connelly, 117 F.4th 269, 274 (5th Cir. 2024) (citations omitted). “It is the government’s burden to demonstrate that the challenged regulation is ‘relevantly similar’ to laws our tradition is understood to permit,” and the government meets that burden “by finding and explicating ‘historical precur- sors’ supporting the challenged law's constitutionality.” Id. (quoting Bruen, 597 U.S. at 29). “The challenged and historical laws are ‘relevantly similar’ if they share a common ‘why’ and ‘how’”—that is, “they must both (1) address a comparable problem (the ‘why’) and (2) place a comparable 4 Case: 24-30307 Document: 132-1 Page: 5 Date Filed: 06/18/2026 No. 24-30307 burden on the right holder (the ‘how’).” Id.; see Bruen, 597 U.S. at 27–30. In Peterson, we reviewed a Second Amendment challenge to the silencer regulations in § 5861. 161 F.4th at 337–42. Peterson sold firearms to an undercover ATF agent without reporting the transaction as required by 27 C.F.R. § 478.126a. When ATF executed a search warrant on his home, they found a silencer that Peterson had made from a kit. Peterson pleaded guilty of possession of an unregistered silencer under § 5861(d) and appealed his conviction on Second Amendment grounds. Id. Peterson assumed, without deciding, that silencers are “Arms” under the Second Amendment. Id. at 339. The panel held that the NFA’s shall- issue silencer-registration regime is “presumptively lawful” and does not implicate the Second Amendment unless a rights claimant can show that the system “has been ‘put toward abusive ends’ through ‘exorbitant fees’ or ‘lengthy wait times in processing license applications.’” Id. at 340 (quoting Bruen, 597 U.S. at 38 n.9). Peterson’s challenge failed at Step 1 of Bruen because he “neither alleged that he applied for an NFA license to make a suppressor, nor asserted that he paid the $200 tax, nor claimed that the tax or application-processing times discouraged him from submitting an appli- cation to the ATF.” Id. (citation modified). The opinion was narrow, deciding “only that Peterson has failed to ‘develop any argument’ or record to show that the NFA is unconstitutional as applied to him.” Id. at 341–42 (citing United States v. Bridges, 150 F.4th 517, 531 (6th Cir. 2025) (Nalbandian, J., concurring)). Peterson left open “the possibility that another litigant may successfully challenge the NFA’s requirements.” Id. at 341. 4 _____________________ 4 Because a facial challenge requires a claimant to “establish that no set of circum- stances exists under which the Act would be valid[,]” United States v. Rahimi, 602 U.S. 5 Case: 24-30307 Document: 132-1 Page: 6 Date Filed: 06/18/2026 No. 24-30307 B. Comeaux asserts that possessing silencers without registration “is protected by the plain text of the Second Amendment” and thus requires a Bruen Step-2 analysis. 5 1. Peterson left open the question whether silencers are Second Amend- ment “Arms.” 161 F.4th at 339. They are. Under the Second Amendment, “Arms” comprises “weapons of offence,” “armour of defence,” and “anything that a man wears for his defence, . . . takes into his hands, or useth in wrath to cast at or strike another.” Heller, 554 U.S. at 581 (citation modified). To “bear arms,” in sum, means to “wear, bear, or carry . . . for the purpose . . . of being armed and ready for offensive or defensive action in case of conflict with another person.” Id. at 584 (ellipses in original). Silencers fit that definition. Silencers lead to “reduced loudness (and reduced risk of hearing loss), lower recoil from the firearm, elimination of muzzle blast, increased accuracy, and faster follow-up shots.” 6 Those are all _____________________ 680, 693 (2024) (quoting United States v. Salerno, 481 U.S. 739, 745 (1987)), and an appli- cation of § 5861(d) was upheld in Peterson, 161 F.4th at 341–42, Comeaux’s facial challenge fails. 5 The statute itself defines silencers as “firearms.” See 26 U.S.C. § 5845(a) (“The term ‘firearm’ means . . . (7) any silencer”). But just as the government could not evade Second Amendment scrutiny by calling firearms something else, defendants cannot invoke the Second Amendment’s protections just because Congress has defined a targeted item as a firearm. The government correctly notes that “statutory labels are controlling for stat- utory purposes but not for constitutional purposes.” Comeaux must therefore rely on Supreme Court precedent and history, not statutory labels. 6 Justin Stevens, Reloading the Second Amendment: The Undue Burdens of the National Firearms Act and Their Remedies, 49 Tex. Tech L. Rev. 149, 164 (Online ed. 2017). 6 Case: 24-30307 Document: 132-1 Page: 7 Date Filed: 06/18/2026 No. 24-30307 critical functions that make firearms both safer and more effective for their core lawful purpose of self-defense. Because silencers are used in self- defense “to cast at or strike another,” they are Second Amendment “Arms.” 7 The government asserts that silencers are not “Arms” because, though useful, silencers are not necessary to the functioning of a gun and are not traditionally tied to militia service. 8 But claimants need not prove either of those factors to succeed. First, Bruen explained that Second Amendment “Arms” need not be necessary for a firearm’s functioning but instead must only “facilitate armed self-defense.” 9 And second, the Supreme Court has cautioned lower courts against the trapped-in-amber approach that the government attempts to use by limiting the definition of “Arms” to those devices required for militia service at the Founding. 10 Silencers are “Arms.” _____________________ 7 See Heller, 554 U.S. at 581; see also Mock v. Garland, 75 F.4th 563, 588 (5th Cir. 2023) (Willett, J., concurring) (“[P]rotected Second Amendment ‘conduct’ likely includes making common, safety-improving modifications to otherwise lawfully bearable arms.”). 8 In initial briefing, the government asserted that silencers are not protected by the plain text of the Second Amendment. The government now posits that silencers fall within the plain text of the Amendment not because they are “Arms” but because they are acces- sories to arms. 9 Bruen, 597 U.S. at 28 (emphasis added); see also Heller, 554 U.S. at 629 (holding that it was irrelevant that the Distrct of Columbia’s “handgun” ban allowed citizens to possess substitutes, such as “long guns”). 10 See Rahimi, 602 U.S. at 691 (“[T]he reach of the Second Amendment is not lim- ited only to those arms that were in existence at the founding.”); Bruen, 597 U.S. at 28 (“[E]ven though the Second Amendment's definition of “arms” is fixed according to its historical understanding, that general definition covers modern instruments that facilitate armed self-defense.”). 7 Case: 24-30307 Document: 132-1 Page: 8 Date Filed: 06/18/2026 No. 24-30307 2. Though silencers are Second Amendment “Arms,” § 5861(d) must implicate an individual’s ability to “keep and bear” them in order to proceed to Step 2 of Bruen. Under our rule of orderliness, we are bound by Peterson, 11 which requires a challenger to the NFA’s shall-issue silencer-registration regime show that the system “has been ‘put toward abusive ends’ through ‘exorbi- tant fees’ or ‘lengthy wait times in processing license applications.’” 161 F.4th at 340 (quoting Bruen, 597 U.S. at 38 n.9). But Comeaux fails in the same way as did Peterson. Comeaux claims that the NFA is unconstitu- tional as applied to him because he seeks to possess silencers for the lawful purpose of self-defense. But he does not in any way rebut the presumption that the NFA’s shall-issue regime is lawful by asserting that it is being put “toward abusive ends.” Thus, Comeaux “cannot overcome that presump- tion because the record does not reveal that the NFA has effectively denied him his Second Amendment rights.” See id. at 341. His challenge fails at Bruen Step 1. See id. ***** Though silencers are Second Amendment “Arms,” because Comeaux has not alleged that the NFA’s shall-issue regime has been put toward abusive ends, he has not shown that § 5861(d) burdens his Second Amendment rights. The judgment of conviction is AFFIRMED. _____________________ 11 See United States v. Mitchell, 160 F.4th 169, 187 (5th Cir. 2025), petition for cert. filed (Feb. 5, 2026) (No. 25-935). 8 Case: 24-30307 Document: 132-1 Page: 9 Date Filed: 06/18/2026 No. 24-30307 Edith Brown Clement, Circuit Judge, joined by Duncan, Circuit Judge, concurring. The right to bear arms is a fundamental right, not a “second-class” one, that demands we show fidelity to the plain text of the Second Amendment and our Nation’s history and tradition when reviewing challenges to firearm regulations. New York State Rifle & Pistol Ass’n v. Bruen, 597 U.S. 1, 70 (2022) (quoting McDonald v. City of Chicago, 561 U.S. 742, 780 (2012)). In Bruen, the Supreme Court eliminated any conceivable doubt about our proper method: History, not interest-balancing, must be our approach. As an intermediate appellate court, we must “interpret the meaning of the Constitution by examining its text and our Nation’s historical tradition of firearm regulation under Bruen, while also adhering to our circuit precedent in this rapidly developing area of law.” United States v. Mitchell, 160 F.4th 169, 194 (5th Cir. 2025), petition for cert. filed (Feb. 5, 2026) (No. 25-935). In executing this role, we rightly hold that silencers are protected “Arms” under the Second Amendment because they serve “critical functions that make firearms both safer and more effective for their core lawful purpose of self-defense.” Thus, lawful purpose, not necessity, is the proper test when assessing whether firearm components, such as silencers, are entitled to constitutional protection. I gladly concur with this opinion. I write separately to address a problem with our decision in United States v. Peterson, which held that Bruen imposes a “presumption of constitutionality for shall-issue licensing regimes.” 161 F.4th 331, 341 (5th Cir. 2025), cert. denied, L. Ed. 2d 501 (2026). I join Judge Richardson of the Fourth Circuit in concluding that such a reading overextends Bruen’s dictum in footnote nine and, in turn, flips Bruen’s two-step analytical method on its head. See Md. Shall Issue, Inc. v. Moore, 116 F.4th 211, 240–41 (4th Cir. 2024) (en banc) (Richardson, J., dissenting). Peterson ought to be revisited. 9 Case: 24-30307 Document: 132-1 Page: 10 Date Filed: 06/18/2026 No. 24-30307 In footnote nine, the Bruen Court stated that “nothing in our analysis should be interpreted to suggest the unconstitutionality of the 43 States’ ‘shall-issue’ licensing regimes.” 597 U.S. at 38 n.9. But Bruen did not analyze a shall-issue regime. Bruen involved a challenge to New York’s requirement that applicants show a special need for self-protection to obtain a license for public carry, which was a type of “may-issue” licensing law. Id. at 12–15. Peterson embraced footnote nine with open arms and read it to establish the presumptive constitutionality of shall-issue licensing regimes. “But read in context,” footnote nine’s “role was much more modest,” as it simply “clarified that shall-issue licensing regimes are not necessarily unconstitutional just because may-issue regimes are.” Md. Shall Issue, Inc., 116 F.4th at 242 (Richardson, J., dissenting). Bruen did not resolve the shall-issue regime question, but rather “invited courts to independently assess the pedigree of shall-issue licensing regimes against the historical record.” Id. Yet Peterson stripped this court of its ability to independently conduct a history and tradition inquiry in a separate case, therefore tying our hands and forcing challengers to rebut this presumption. In so doing, Peterson traded history for dictum. See United States ex rel. Schutte v. SuperValu Inc., 598 U.S. 739, 755 n.6 (2023) (cautioning against “read[ing] a footnote” in an opinion to “establish the general rule” for a line of cases); see also Brown v. Davenport, 596 U.S. 118, 141 (2022) (urging against snagging “stray comments and stretch[ing] them beyond their context—all to justify an outcome inconsistent with th[e] Court’s reasoning and judgments”). By transforming footnote nine’s dictum into doctrine, Peterson erected a new “half-step” between Step One and Step Two. United States v. Speed, 175 F.4th 272, 291 (4th Cir. 2026) (Richardson, J., concurring). This new half-step requires Comeaux to overcome the NFA’s presumptive constitutionality by showing that the NFA “has been ‘put toward abusive ends’ through ‘exorbitant fees’ or ‘lengthy wait times in processing license 10 Case: 24-30307 Document: 132-1 Page: 11 Date Filed: 06/18/2026 No. 24-30307 applications.’” Peterson, 161 F.4th at 340 (quoting Bruen, 597 U.S. at 38 n.9). So, Comeaux’s challenge fails—not because of history and tradition—but because he does not rebut the presumption that the NFA’s shall-issue regime is lawful by asserting that it is being “put toward abusive ends.” Bruen, 597 U.S. at 38 n.9. This rule is incompatible with Bruen’s two-step method. In effect, Peterson’s pronouncement of this half-step resurrects a repudiated form of interest-balancing, as it now greenlights a court’s assessment of a law’s “abusiveness,” which can bring a Bruen challenge to an end. But such interest-balancing provides cover for judicial policymaking. Peterson problems therefore abound. While this Court is bound by the rule of orderliness, see Mitchell, 160 F.4th at 187, Peterson requires revisitation. I urge the en banc court to recalibrate our Second Amendment jurisprudence to reflect text, history, and tradition—not interest-balancing. Accordingly, I concur. 11