Wisconsin NFA Items

What NFA Covers

The National Firearms Act of 1934 (NFA), codified at 26 U.S.C. § 5811 et seq., regulates a specific category of firearms and accessories:

• Suppressors (silencers).
• Short-barreled rifles (SBRs) - rifle barrels under 16 inches or overall length under 26 inches.
• Short-barreled shotguns (SBSs) - shotgun barrels under 18 inches or overall length under 26 inches.
• Fully automatic firearms (machine guns).
• Destructive devices (e.g., grenades, larger-bore weapons).
• Any other weapons (AOW) - a residual category capturing certain unconventional concealable firearms.

Federal NFA framework requires registration with ATF, payment of a transfer tax (typically $200), and ATF approval before transfer.

Wisconsin's State-Level Position

Wisconsin generally permits private ownership of NFA items by Wisconsin residents who comply with the federal NFA framework, subject to specific state-law restrictions. There is no Wisconsin statute that uniformly bans NFA items at state level beyond what the federal scheme already imposes.

Suppressors

Suppressors (silencers) are lawful to own in Wisconsin for non-prohibited persons who comply with federal NFA. The acquisition process:

1. Identify a Wisconsin SOT (Special Occupational Tax) dealer who handles NFA transfers.
2. Complete ATF Form 4 (Application for Tax Paid Transfer and Registration of Firearm) with the dealer.
3. Submit fingerprints and the $200 transfer tax to ATF.
4. Wait for ATF approval (currently several months to a year).
5. Pick up the suppressor from the dealer after ATF approval.

Wisconsin does NOT have a state-level prohibition on suppressor ownership. Wisconsin does allow suppressor use for hunting subject to Wisconsin DNR regulations.

Short-Barreled Rifles and Shotguns

SBRs and SBSs are lawful to own in Wisconsin for non-prohibited persons who comply with federal NFA. The acquisition process tracks the suppressor process - ATF Form 4, $200 transfer tax, fingerprints, waiting period.

Wisconsin does NOT have a state-level prohibition on SBR or SBS ownership.

Note: Wis. Stat. § 175.60(1)(bm) defines "handgun" for purposes of the CCL framework and excludes short-barreled rifles and short-barreled shotguns. SBRs and SBSs are NOT covered by the CCL even though some shooters carry them concealed.

Machine Guns

Fully automatic firearms are heavily restricted. Federal law at 18 U.S.C. § 922(o) prohibits civilian transfer of machine guns manufactured after May 19, 1986. Pre-1986 machine guns ("transferable machine guns") are lawful for civilian ownership subject to NFA registration but command very high prices in the private market.

Wisconsin generally permits private ownership of transferable machine guns by Wisconsin residents who comply with federal NFA. Wisconsin's definition of "handgun" at Wis. Stat. § 175.60(1)(bm) specifically excludes a "machine gun" (as defined in Wis. Stat. § 941.25), so a machine gun is NOT covered by the CCL.

Machine guns are functionally rare in private hands due to the 1986 manufacturing ban and the resulting price inflation in the transferable supply.

Destructive Devices

Destructive devices are heavily restricted at federal level. Wisconsin does not maintain a parallel state-level scheme. Acquisition requires NFA Form 4 plus, in many cases, a federal explosives license.

Any Other Weapons (AOW)

The AOW category captures certain concealable firearms that don't fit the handgun-rifle-shotgun taxonomy. AOWs are lawful for civilian ownership under NFA Form 4. Wisconsin does not impose state-level restrictions specific to AOWs.

Wisconsin Hunting Regulations and Suppressors

Wisconsin DNR permits the use of suppressors for hunting most game species, subject to specific rules in Wisconsin Administrative Code NR chapters. The suppressor must be lawfully owned (NFA-registered) and the hunter must comply with all other hunting regulations.

Wisconsin and SBRs / SBSs - Subject to General Carry Rules

A Wisconsin owner of an NFA-registered SBR or SBS may possess and transport the weapon subject to:

• The federal NFA framework (registered, transfer-tax-paid, ATF approval to take out of state under ATF Form 5320.20).
• Wis. Stat. § 167.31 transport rules - the weapon must be unloaded and either encased or stored in a location not accessible to occupants when transported by a non-licensee.
• General Wisconsin carry rules - the CCL does NOT cover SBRs or SBSs, so concealed carry of an SBR is not authorized by the CCL.

Wisconsin Prohibition Carve-Outs

Wisconsin does NOT prohibit:

• Suppressor ownership or use.
• SBR or SBS ownership (with NFA compliance).
• AOW ownership (with NFA compliance).
• Transferable machine gun ownership (with NFA compliance).

Wisconsin DOES generally adhere to federal NFA registration requirements - an unregistered NFA item is a federal felony, and Wisconsin state law would generally treat unregistered NFA possession as unlawful via the Wis. Stat. § 941.25 / § 941.28 framework for machine guns, SBRs, and SBSs.

ATF Approval Times

ATF approval for NFA transfers historically takes 6-12 months for Form 4 transfers. The ATF has implemented eForms in recent years, which has shortened approval times for some categories. Suppressor and SBR approvals typically take less than 1 year currently; transferable machine gun approvals can take longer due to the limited supply and the more careful review of each transfer.

Trust vs. Individual Ownership

Many NFA-item owners use a "gun trust" or "NFA trust" structure to allow multiple authorized users and to simplify estate transfer. A Wisconsin NFA owner may set up the trust before submitting Form 4, with the trust as the registered owner. Trust ownership has gained popularity for estate-planning benefits.

Transporting NFA Items Out of State

Federal law requires advance ATF approval (Form 5320.20) to take certain NFA items (specifically: machine guns, SBRs, SBSs, destructive devices) out of the state of registration. Suppressors are NOT subject to the Form 5320.20 requirement. A Wisconsin NFA owner taking an SBR to a neighboring state for a competition must submit Form 5320.20 and receive approval before the trip.

Each destination state must also permit civilian NFA ownership. Some states (notably California, Illinois, Massachusetts, New York) prohibit civilian ownership of some NFA categories - check the destination state before transporting.

Compliance Best Practices

• Keep the ATF Form 4 approval documentation with the NFA item or readily accessible.
• Use a quality lockable safe for NFA item storage at home.
• Use a quality hard-sided locked case for NFA item transport.
• Comply with Wisconsin's Wis. Stat. § 167.31 transport rules.
• Submit Form 5320.20 in advance for out-of-state transport of machine guns, SBRs, SBSs, and destructive devices.

Summary

Wisconsin permits private ownership of NFA items by federal-NFA-compliant non-prohibited adults. No Wisconsin statute prohibits NFA categories beyond what the federal scheme already imposes. The Wis. Stat. § 175.60 CCL covers handguns only, not SBRs / SBSs / machine guns. Wisconsin's permissive NFA posture is similar to most Midwestern states and contrasts with restrictive states like California, Illinois, Massachusetts, and New York.

Disclaimer

NFA law is highly complex. This summary is informational. Consult a Wisconsin attorney experienced in NFA transactions before acquiring, transferring, or transporting an NFA item.