Full-Auto Firearms and Machine Gun Parts
By listing a full-auto firearm, machine gun, or machine gun part on GunBroker.com, you agree to comply with the following requirements. Listings that do not comply with these requirements may be removed without notice.
Full-Auto Firearms
All machine guns and other full-auto firearms must:
- Be transferred in accordance with the National Firearms Act (NFA) and all applicable federal, state, and local laws.
- Be clearly identified as a machine gun or full-auto firearm within the item description.
- Include language stating that the item will only be shipped to a properly licensed Federal Firearms Licensee (FFL) with the appropriate Special Occupational Tax (SOT) status.
Full-Auto Parts
Machine gun parts, including but not limited to auto sears, replacement sears, and other components designed for use in machine guns, are subject to the same GunBroker restrictions.
Although certain machine gun parts may not be regulated by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), GunBroker requires that these items:
- Be clearly identified in the listing.
- Include language stating that the item will only be shipped to a properly licensed FFL/SOT holder.
Prohibited Items
The following items are prohibited and may not be listed on GunBroker:
- Instructions, manuals, guides, or informational materials describing how to convert a firearm to fully automatic operation.
- Instructions, manuals, guides, or informational materials describing how to manufacture a silencer or suppressor.
- Full-auto conversion kits.
- Any item intended to unlawfully convert a firearm into a machine gun.
NFA / Title II Item Listing Requirements
What Are NFA / Title II Items?
NFA (National Firearms Act) items, also known as Title II firearms, are firearms and devices regulated under federal law. Examples include:
- Suppressors / silencers
- Short-barreled rifles (SBRs)
- Short-barreled shotguns (SBSs)
- Machine guns
- Destructive devices
- Any Other Weapons (AOWs)
Recent Court Ruling and Limited Exceptions
On August 8, 2026, a federal district court entered a party-specific injunction limiting enforcement of certain NFA registration and making or transfer approval requirements for specified plaintiffs and, where applicable, their members and customers. The ruling addresses suppressors, short-barreled rifles, and short-barreled shotguns and, for certain plaintiffs, "any other weapons"; it does not affect machine guns or destructive devices, which remain subject to the federal transfer tax and all existing NFA requirements. The U.S. Department of Justice declined to seek an emergency stay of the decision. The injunction is currently in effect, but it is not nationwide, and the government may still appeal or seek a stay of the final judgment.
Limited court-ordered exceptions may permit covered parties to complete certain transactions without NFA registration or an ATF Form 4. Coverage depends on the parties, the item, and the particular transaction. The injunction does not eliminate the Gun Control Act or other applicable federal, state, or local requirements.
The injunction generally covers named plaintiffs, current and future members of certain plaintiff organizations, and current and future customers of commercial plaintiffs or commercial members, but customer coverage is limited to transactions with those businesses. It does not automatically extend to other marketplace participants or to every NFA item a covered customer may possess or transfer.
For additional industry information, see NSSF Guidance on NFA Transfers. This article and the linked resource are provided for informational purposes only and do not constitute legal advice.
Listing Requirements
1. FFL and SOT Requirements
To list NFA items on GunBroker, sellers must possess a valid Federal Firearms License (FFL).
Where required by law, sellers must also hold the appropriate Special Occupational Tax (SOT) designation:
- Class 1 SOT – Importers
- Class 2 SOT – Manufacturers
- Class 3 SOT – Dealers
Sellers who do not possess the required licenses and tax status may not list NFA items.
2. Category Selection
All NFA / Title II items must be listed in the appropriate NFA-specific category.
Listings placed in incorrect or non-NFA categories may be removed.
GunBroker will continue to use its existing NFA categories and FFL routing requirements. The ruling does not change GunBroker's existing platform processes.
3. Listing Content Requirements
Listings must clearly identify the item as an NFA / Title II item and include:
- Manufacturer
- Model
- Caliber or gauge (if applicable)
- Overall condition
Suppressor listings should also include:
- Thread pitch or mounting system compatibility
- Caliber rating
- Any applicable mounting accessories
Sellers must not represent that a listing or transaction is "approved," "NFA exempt," or eligible for transfer without registration or an ATF Form 4 unless they also clearly state that eligibility must be determined by the seller and the transferring FFL based on the particular transaction.
4. Transfer Requirements
All NFA item transfers must be completed through a licensed FFL/SOT dealer and in accordance with applicable federal, state, and local laws. GunBroker will continue its existing FFL routing requirements, and direct shipment to buyers remains prohibited wherever an FFL transfer is required.
Except where a limited court-ordered exception applies, buyers must complete the required ATF transfer process, including submission and approval of the appropriate ATF forms, before taking possession of the item.
NFA transfer approval times may vary and can take several months.
GunBroker does not verify plaintiff or organizational membership, determine injunction eligibility, or determine whether a transaction may proceed without registration or an ATF Form 4. Those determinations, and compliance with all remaining requirements, are the responsibility of the buyer, seller, and participating FFL.
Covered sellers may coordinate any procedure for a transfer without registration or an ATF Form 4 directly with the receiving FFL. GunBroker will not administer or modify its platform processes for those procedures.
Common Reasons NFA Listings Are Removed
NFA listings may be removed for reasons including, but not limited to:
- Missing or invalid FFL/SOT credentials
- Listing in the wrong category
- Violation of GunBroker policies
- Federal, state, or local legal restrictions
- Incomplete or inaccurate listing information
- Representing an item as "approved," "NFA exempt," or eligible for transfer without registration or an ATF Form 4 without the required statement that eligibility is determined by the seller and the transferring FFL
If Your NFA Listing Was Removed
If your listing was removed:
- Verify that your FFL and, where applicable, SOT status are current and on file with Master FFL.
- Confirm that the item was listed in the correct category.
- Review the listing for compliance with all GunBroker policies.
- Correct any deficiencies and relist the item, if permitted.
- Contact GunBroker Support if you believe the removal occurred in error.
State and Local Restrictions
Certain states and local jurisdictions prohibit or restrict possession, transfer, or ownership of specific NFA items. Some state laws tie lawful possession or transfer to NFA registration, so an item acquired under a court-ordered exception may still be restricted under state or local law.
Buyers, sellers, and participating FFLs are solely responsible for determining whether listed items may be legally sold, transferred, shipped, received, and possessed in the applicable jurisdictions.
GunBroker's acceptance of a listing, processing of a marketplace transaction, or routing of an item to an FFL does not constitute approval of the transaction or a determination that any exemption or injunction applies.