Buying a suppressor in Illinois is not legal for civilians. The state is one of eight that bans civilian suppressor ownership outright, and no permit, license, federal registration, or trust arrangement opens a path for an individual resident to purchase or possess one. Getting caught with a suppressor in Illinois is a felony, even if the device is properly registered under federal law.
What the Illinois Statute Bans
Under 720 ILCS 5/24-1(a)(6), it is a crime to knowingly sell, manufacture, purchase, possess, or carry any device or attachment designed, used, or intended for use in silencing a firearm’s report.1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons The ban covers the full lifecycle of the item. It does not matter whether you bought it legally in another state, built it yourself, or inherited it. If it fits the statutory description and it is in Illinois, possessing it is a crime.
Each suppressor is also charged separately. Two devices means two counts, not one.1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons
Penalties for Possession
Suppressor possession is a Class 3 felony in Illinois, punishable by two to five years in prison.1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons2Illinois General Assembly. Illinois Code 730 ILCS 5/5-4.5-40 – Class 3 Felony An extended-term sentence can reach five to ten years.
The charge jumps to a Class 2 felony, with a mandatory minimum of three years and a maximum of seven, if the suppressor is possessed in or within 1,000 feet of a school, public park, courthouse, public housing, or public transit.1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons
A felony conviction also strips your firearm rights. Restoring them in Illinois requires a gubernatorial pardon or a successful court petition, neither of which is routine.
Why Federal Registration Doesn’t Help
Suppressors are regulated federally under the National Firearms Act of 1934, which groups them with machine guns and short-barreled rifles.3Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act The federal definition reaches any silencer, including parts designed to build one.4Office of the Law Revision Counsel. 26 USC 5845 – Definitions The NFA process involves ATF approval, a background check, and a transfer tax that was reduced to $0 beginning in 2026.
The NFA creates a framework for legal ownership. It does not force states to allow suppressors. Completing every federal step correctly still leaves you holding an item that is a felony to possess in Illinois. Federal registration is not a defense to a state charge.
NFA Trusts and Keeping One Out of State
Setting up an NFA trust in another state does not create a legal path for an Illinois resident to bring a suppressor home. A trust is a legal entity that can hold title to NFA items, but it does not override the law of the state where the item physically sits. An Illinois resident listed as a trustee cannot carry a trust-owned suppressor into Illinois.
Some Illinois residents do set up trusts and store suppressors in neighboring states where civilian ownership is legal, handling the device only while physically in that state. The arrangement can work, but it depends on strict discipline. The suppressor never crosses into Illinois, and one traffic stop on the wrong side of the border can turn a legal hobbyist into a felony defendant.
Driving Through Illinois With a Suppressor
The federal Firearm Owners Protection Act includes a safe-passage provision at 18 U.S.C. ยง 926A for transporting firearms between states where possession is legal, provided the firearm is unloaded and not readily accessible from the passenger compartment.5Office of the Law Revision Counsel. 18 USC 926A – Interstate Transportation of Firearms Whether that protection reliably covers suppressors moving through Illinois is unsettled. FOPA protects “firearms,” and the NFA defines suppressors as firearms, but Illinois law contains no state-level safe-passage recognition for suppressors, and the state’s transportation exemptions for other weapons specifically exclude devices covered under subsection (a)(6).1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons
If a suppressor is found in your car during an Illinois stop, you could be arrested and would need to raise federal preemption as a defense. You might win that fight eventually, but the arrest, booking, and legal costs happen first. If passing through is unavoidable, keep the suppressor locked in a container in the trunk, fully separated from any firearm, and do not linger. Routing around Illinois is the safer option.
The Narrow Exemptions
The general weapons exemptions in 720 ILCS 5/24-2(a) that cover peace officers and military members do not apply to suppressor possession under subsection (a)(6).6Illinois General Assembly. Illinois Code 720 ILCS 5/24-2 – Exemptions Suppressors have their own narrow carve-outs:
- Individuals or businesses licensed under federal law to manufacture suppressors may possess them within the scope of that manufacturing business, including production, transportation, and testing. During transport, the suppressor must be detached from any firearm or stored so it is not immediately accessible.6Illinois General Assembly. Illinois Code 720 ILCS 5/24-2 – Exemptions
- Peace officers serving on a tactical response team or special operations unit may use suppressors, but the devices must be owned and maintained by the government agency, not the officer personally.6Illinois General Assembly. Illinois Code 720 ILCS 5/24-2 – Exemptions
Regular patrol officers, active-duty military members, licensed dealers who are not manufacturers, and all civilians fall outside those exemptions. An off-duty officer who buys a suppressor for personal use faces the same felony exposure as anyone else.
Solvent Traps Are a Trap in Illinois
Solvent traps are firearm cleaning accessories sold legally in most of the country. With minor modifications they can function as suppressors, which has drawn ATF attention nationally. In Illinois the risk is sharper because the statute reaches any device “designed, used, or intended for use” in silencing a firearm.1Illinois General Assembly. Illinois Code 720 ILCS 5/24-1 – Unlawful Possession of Weapons That “intended for use” language is broad enough to cover items that are not yet functional suppressors if prosecutors can show a plan to convert them. A solvent trap kept alongside drilling equipment or conversion instructions can support a charge. Illinois residents are safest avoiding these products entirely.
The Pending Lawsuit
In February 2023, the American Suppressor Association Foundation and Silencer Shop funded a federal challenge in the Southern District of Illinois arguing that the state’s suppressor ban violates the Second Amendment.7American Suppressor Association. Litigation – Illinois The case, Anderson v. Raoul, invokes the Supreme Court’s 2022 Bruen decision, which requires firearm regulations to align with the nation’s historical tradition of firearms regulation. As of early 2026 the case has not produced a ruling that changes the law. Until a court strikes the ban down, Illinois law remains in full force, and acting on the assumption the lawsuit will succeed means gambling with a felony.
Legal Alternatives for Illinois Residents
Illinois residents who want to shoot with a suppressor can travel to a neighboring state where civilian ownership is legal. Indiana, Iowa, Kentucky, Missouri, and Wisconsin all allow it, and some ranges in border towns cater to Illinois customers for exactly this reason.
Forty-two states currently allow civilian suppressor ownership. Illinois is one of eight that do not, along with California, Delaware, Hawaii, Massachusetts, New Jersey, New York, and Rhode Island.7American Suppressor Association. Litigation – Illinois Bills to change Illinois law have been introduced periodically but have not advanced through the General Assembly.