United States v. Aguilar — Affirmed the conviction and sentence for illegal firearm possession

Case
United States v. Aguilar
Court
U.S. Court of Appeals for the Fifth Circuit
Judge
Smith (Ronald Reagan, 1987); Southwick (George W. Bush, 2007)
Date Decided
July 23, 2026
Docket No.
26-10076
Topics
Second Amendment; Commerce Clause; Firearms; Sentencing Guidelines
Source
Read the full opinion

Background

T.J. Aguilar was convicted for receipt of a firearm by a person under felony indictment, in violation of 18 U.S.C. § 922(n). He subsequently appealed both his conviction and sentence to the United States Court of Appeals for the Fifth Circuit, where the government moved for summary affirmance.

Aguilar presented three primary arguments on appeal. First, he contended that § 922(n) is unconstitutional under the Second Amendment, specifically in light of the Supreme Court’s decision in *New York State Rifle & Pistol Ass’n, Inc. v. Bruen*. Second, he argued that the statute exceeds Congress’s power under the Commerce Clause. Finally, Aguilar challenged the district court’s application of an enhanced offense level under U.S.S.G. § 2K2.1(a)(4), asserting an error in the interpretation of the commentary’s definition of “large capacity magazine.”

The Court’s Holding

The Fifth Circuit granted the government’s motion for summary affirmance, thereby upholding Aguilar’s conviction and sentence. The court systematically rejected each of Aguilar’s constitutional and sentencing challenges. Addressing the Second Amendment argument, the panel found it to be “foreclosed” by the circuit’s own established precedent in *United States v. Quiroz*, indicating that similar challenges to § 922(n) have previously been considered and rejected by the court.

Regarding Aguilar’s Commerce Clause claim, the Fifth Circuit concluded that the argument was “unavailing under plain error review,” citing *United States v. Jones* and *United States v. Alcantar*. This determination suggests that Aguilar either failed to properly preserve the argument during the district court proceedings or that any potential error did not meet the stringent criteria for reversal under plain error review. Lastly, the court dismissed Aguilar’s challenge to the enhanced offense level applied under U.S.S.G. § 2K2.1(a)(4), ruling that this argument was also “foreclosed” by the circuit’s prior decision in *United States v. Martin*, which controls the interpretation and application of the relevant sentencing guideline commentary.

Key Takeaways

  • The Fifth Circuit continues to affirm the constitutionality of 18 U.S.C. § 922(n) (prohibiting firearm receipt by individuals under felony indictment) against Second Amendment challenges, consistently applying its precedent from *United States v. Quiroz*.
  • Arguments that § 922(n) exceeds Congress’s power under the Commerce Clause are unlikely to succeed on appeal in the Fifth Circuit, particularly if not properly preserved and thus subject to plain error review.
  • Challenges to the application of sentencing enhancements under U.S.S.G. § 2K2.1(a)(4), especially those pertaining to the definition of “large capacity magazine,” are also deemed foreclosed by controlling circuit precedent, specifically *United States v. Martin*.

Why It Matters

This decision provides further clarity and reinforces the stability of existing Fifth Circuit jurisprudence concerning federal firearms laws and sentencing guidelines. For legal practitioners within the circuit, the ruling underscores that challenges to 18 U.S.C. § 922(n) based on Second Amendment or Commerce Clause grounds are firmly settled by prior caselaw. The court’s consistent reliance on its own precedent in *Quiroz*, *Jones*, *Alcantar*, and *Martin* indicates a robust and established legal framework in these areas.

Attorneys representing defendants charged under § 922(n) or facing sentencing enhancements under U.S.S.G. § 2K2.1(a)(4) in the Fifth Circuit will need to consider these precedents carefully, as the court has demonstrated a strong tendency to affirm convictions and sentences unless arguments can be clearly distinguished from existing foreclosing authority. This decision solidifies the legal landscape for firearm-related offenses and sentencing within the Fifth Circuit.

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