Silencers As Protected Arms

Introduction

Firearm silencers, more accurately termed suppressors, are devices attached to the muzzle of a firearm to reduce the noise, muzzle flash, and recoil of a gunshot. Far from the Hollywood “silent assassin” trope, modern suppressors typically reduce sound by 20-35 decibels, offering significant hearing protection for shooters and bystanders while improving control and accuracy. In the United States, they have been regulated under the National Firearms Act (NFA) of 1934, requiring registration, taxation (recently reduced or eliminated in some contexts), and background checks. 

The core question in contemporary Second Amendment jurisprudence is whether suppressors qualify as “arms” protected by the Constitution’s plain text: “A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.” Post-District of Columbia v. Heller (2008) and New York State Rifle & Pistol Association v. Bruen (2022), courts apply a text-history-tradition (THT) test. If the regulated item falls within the plain text of “arms,” the government must show the restriction aligns with the nation’s historical tradition of firearm regulation. 

This article argues that suppressors are protected “arms” because they facilitate the core lawful purpose of armed self-defense by making firearms safer, more effective, and more practical for ordinary citizens. It examines Supreme Court precedents, contrasting rulings from the Fifth and Ninth Circuits, the concept of facilitation, and European approaches that treat suppressors primarily as safety and hunting tools with broad accessibility. With millions of registered suppressors in circulation (over 6.4 million as of mid-2026), the legal battle has profound implications for gun owners, hearing health, and constitutional rights. 

Historical and Functional Context of Suppressors

Suppressors date back to the early 20th century, with Hiram Maxim’s designs patented around 1902. They were initially marketed for reducing noise pollution and protecting hearing—practical benefits recognized even then. Theodore Roosevelt reportedly used one for hunting. Functionally, a suppressor redirects and cools expanding gases from the barrel, mitigating the sonic crack and blast. 

In self-defense scenarios, facilitation is key. A suppressor lowers recoil for faster follow-up shots, reduces muzzle blast for better situational awareness (especially indoors), and preserves the shooter’s hearing so they can communicate or assess threats. These are not luxuries but enhancements that make the fundamental right to armed defense more viable. Without them, shooters risk permanent hearing damage from even a single unsuppressed shot in confined spaces. Public health bodies like the CDC and NIOSH endorse suppressors for hearing conservation. 

Historically, Founding-era Americans understood “arms” broadly to include weapons and accoutrements that aid in their effective use. Heller defined “arms” as “any thing that a man wears for his defence, or takes into his hands, or useth in wrath to cast at or strike another,” extending to modern instruments that serve the same purpose. Accessories like slings, sights, or magazines have long been viewed as integral to effective arms-bearing. Suppressors fit this tradition by enhancing, rather than altering, the firearm’s core function. 

The NFA’s heavy regulation stemmed from 1930s concerns over gangster weapons, lumping suppressors with machine guns and short-barreled rifles. Yet, as millions of law-abiding owners demonstrate, suppressors are overwhelmingly used for sport, hunting, and home defense—not crime. Their criminal misuse rate is negligible compared to their prevalence.

Supreme Court Precedents and the Framework for Protection

The Supreme Court has not directly ruled on suppressors, but its decisions provide a clear pathway for protection. In Heller, the Court affirmed an individual right to possess arms for self-defense, striking down a handgun ban and emphasizing that the Amendment protects weapons “in common use” for lawful purposes. Suppressors easily meet the “common use” test today. 

Bren (2022) revolutionized review by rejecting means-end scrutiny in favor of THT. If conduct involves keeping or bearing “arms,” it is presumptively protected unless the government proves a historical analogue. United States v. Rahimi (2024) clarified that regulations need not be identical but must be “relevantly similar” in “why and how” they burden the right. 

Lower courts have applied this to accessories. The absence of a direct SCOTUS ruling on suppressors has led to splits, but recent developments—such as the elimination of the $200 NFA transfer tax via legislation like the One Big Beautiful Bill—shift the debate. With taxation neutralized, registration requirements face heightened scrutiny as potential burdens on protected arms. 

Heller II and related cases underscore that the right extends to arms that facilitate self-defense, not just bare-minimum functionality. A firearm without a suppressor still fires, but the Amendment protects effective, practical exercise of the right—much like vehicles with safety features beyond basic propulsion.

The Fifth Circuit’s Recognition: Suppressors as Facilitative Arms

In United States v. Comeaux (2026), the Fifth Circuit unanimously held that suppressors are Second Amendment “arms.” The panel, citing Heller’s definition, reasoned that suppressors qualify as “weapons of offence” because they reduce noise, lower recoil, eliminate muzzle blast, increase accuracy, and enable faster follow-up shots—all critical for self-defense. 

Crucially, the court rejected the government’s “necessity” argument. Arms need not be essential to a firearm’s basic operation; they must facilitate armed self-defense. “Because silencers are used in self-defense ‘to cast at or strike another,’ they are Second Amendment ‘Arms.’” This directly embraces facilitation: suppressors make the right more usable in real-world conditions, aligning with Bruen’s emphasis on practical carry and use. 

The Fifth Circuit upheld the conviction on narrow grounds (NFA’s shall-issue regime not shown abusive as applied), but the “arms” holding creates a powerful precedent. It contrasts with earlier Fifth Circuit hesitancy in cases like United States v. Peterson, where the court sometimes assumed without deciding or focused on regulation. Comeaux advances the ball, establishing a circuit split ripe for Supreme Court review. 

This ruling underscores pro-2A framing: suppressors enhance safety and efficacy without increasing danger. They align with the Amendment’s original public meaning, where citizens equipped themselves with tools for effective defense.

The Ninth Circuit’s Narrow View: Accessories Outside Protection

In stark contrast, the Ninth Circuit in United States v. DeBorba (June 3, 2026) held that suppressors are not “arms” under the plain text. Treating them as “optional accessories” akin to slings or scopes, the court concluded they fall outside protection because a firearm operates without one. It did not reach historical tradition analysis. 

This “necessity” test is narrower than Heller or Bruen contemplate. By lumping suppressors with non-essential add-ons, the Ninth Circuit risks eroding protection for any modern improvement. Critics note this could justify banning optics, extended magazines, or ergonomic grips—anything not strictly required for a bare-bones firearm to function. The decision joins other circuits (e.g., Fourth) that view suppressors as accessories but conflicts sharply with the Fifth. 

The Ninth’s approach undervalues facilitation. Hearing protection and reduced recoil are not optional frills in self-defense; they enable sustained, accurate response under stress. The ruling preserves NFA requirements but ignores evolving common use and public health consensus.

This split—Fifth Circuit affirming protection via facilitation versus Ninth denying textual coverage—highlights the need for Supreme Court clarification. Hardware cases like this, alongside magazine bans (Duncan v. Bonta), pressure the Court to define the boundaries of “arms.” 

Facilitation in Depth: Why Suppressors Enhance Constitutional Rights

Facilitation lies at the heart of the pro-protection argument. The Second Amendment protects not abstract possession but the practical ability to keep and bear arms for self-defense. Suppressors facilitate this by:

•  Hearing Safety: Unsuppressed shots can cause immediate damage. Suppressors allow training and defense without ear protection, preserving awareness. 

•  Recoil and Accuracy: Lower recoil enables quicker, more precise shots—vital in home defense or against multiple threats.

•  Muzzle Awareness and Communication: Reduced blast helps maintain night vision, situational awareness, and verbal commands.

•  Community and Environmental Benefits: Less noise reduces disturbances, encouraging responsible range use.

These benefits echo Heller’s protection of arms “in common use” and Bruen’s rejection of interest-balancing. Regulations must not render the right ineffective. Categorical bans or onerous NFA hurdles (even post-tax reform) burden protected conduct without sufficient historical analogues. Early American laws regulated misuse, not common safety enhancements.

Public data shows suppressors in common use: millions owned lawfully, with demand surging after tax relief. This mirrors the handgun’s status in Heller. 

European Views and Accessibility: A Contrast in Policy

Europe offers a compelling comparative lens. Many nations treat suppressors as standard hunting and safety equipment, with minimal barriers—undermining U.S. claims of inherent danger. 

•  Nordics (Sweden, Norway, Finland): Highly permissive. Norway allows over-the-counter purchase with no license. Sweden deregulated in 2022; no separate permit needed with a valid firearm license. Finland requires only a firearm ownership permit. 

•  Western/Central Europe: France legalized hunting suppressors in 2018. Germany simplified access for hunters in 2020. Denmark (2014), Portugal (2019), and others followed. The UK has pursued deregulation. Many countries exempt or ease rules for hunters to control pests or reduce noise. 

•  Restrictions: Some nations (e.g., Italy for certain types, Spain’s broader bans) remain stricter, but the trend is liberalization for lawful users. Suppressors are not viewed as “assassin tools” but practical tools. 

Europe’s experience demonstrates low misuse risk and high utility for hearing protection and wildlife management. This contrasts with U.S. NFA burdens and bolsters arguments that American restrictions lack historical or practical justification. If “gun-friendly” Europe normalizes suppressors, U.S. courts should recognize their facilitative role under the Second Amendment.

Ongoing Litigation, Policy Implications, and the Path Forward

Circuit splits in Comeaux and DeBorba, alongside NFA challenges (e.g., Peterson), position the Supreme Court to resolve whether suppressors are protected arms. SAF, FPC, and others continue litigation, arguing post-tax registration remains an unconstitutional burden. 

Policy-wise, full deregulation or shall-issue national reciprocity for suppressors would align with common use, European norms, and constitutional text. States banning them outright (a minority) face challenges, as in New Jersey suits. 

For advocates, the emphasis on facilitation—safety, efficacy, practicality—frames suppressors as enhancements to liberty, not threats. Pro-2A analyses highlight how burdens disproportionately affect law-abiding citizens while criminals ignore laws.

Conclusion

Suppressors exemplify protected “arms” under the Second Amendment because they facilitate the core right of armed self-defense. The Fifth Circuit’s Comeaux ruling correctly applies Heller and Bruen by focusing on function over necessity, while the Ninth Circuit’s narrower view in DeBorba risks diminishing the Amendment’s practical scope. Supreme Court intervention is likely and warranted to affirm textual protection and scrutinize regulations under THT.

European accessibility proves suppressors can be safely integrated as hearing-protection tools without undermining public safety. With millions in lawful hands and clear benefits, the U.S. should move toward treating them as ordinary arms—subject to standard background checks but free from outdated NFA encumbrances. This upholds the Founders’ vision of an armed populace equipped for effective, responsible self-defense. The right to keep and bear arms includes the right to do so safely and proficiently. Suppressors advance that ideal.