The 4,000 Machine Guns That became Transferable
How Certain Pre-1986 Dealer Samples Changed Status, Why It Matters, and How to Find Out If You Own One
For decades, collectors of registered machine guns have lived with a simple rule:
If a machine gun was imported into the United States after the Gun Control Act of 1968 and before May 19, 1986, it generally could not be transferred to an ordinary civilian unless it qualified as a transferable machine gun under the applicable registration history.
The market therefore developed three broad categories:
Transferable machine guns
Pre-1986 dealer samples, commonly called “pre-samples” or “pre-May samples”
Post-May 19, 1986 dealer samples, commonly called “post-samples”
For collectors, the difference between the first two categories can mean tens of thousands of dollars.
Then, in 2024, something extraordinary happened.
ATF began recognizing that some machine guns that had historically been treated as restricted pre-1986 dealer samples were actually imported for direct government use and had been properly registered to government agencies before May 19, 1986.
If those guns meet the requirements identified by ATF, they can be transferable.
The internet quickly summarized this as:
“ATF just made 4,000 pre-samples transferable.”
That description is convenient, but it is not technically correct.
In fact, ATF specifically addressed the issue in a 2024 presentation and stated that the widely reported claim that “4,000” pre-1986 imported machine guns had been determined to be transferable was false. ATF explained that eligibility depends on the individual firearm’s importation and registration history and that determinations are made case by case. (ATF)
That distinction is extremely important for anyone who owns, is selling, or is considering buying a pre-1986 imported machine gun.
Why Did This Happen?
To understand the change, you have to go back to the laws that created the modern machine-gun market.
The 1968 Gun Control Act
The Gun Control Act of 1968 substantially changed the rules governing imported firearms, including imported NFA firearms.
ATF explains that the 1968 law restricted importation of NFA firearms for private ownership but created exceptions for firearms imported for government use and certain other purposes. (ATF)
One of those exceptions was particularly important:
Machine guns could be imported for the use of the United States government, state or local governments, and their agencies.
That created an important distinction.
A foreign-made machine gun imported specifically for a police department was different from a machine gun imported into the United States as a dealer sales sample.
Both could eventually end up in the hands of an FFL/SOT.
But their original legal histories were not necessarily the same.
That difference became extremely important after 1986.
May 19, 1986: The Machine-Gun Registry Closes
The Firearm Owners’ Protection Act of 1986 added 18 U.S.C. §922(o).
The basic rule became that machine guns could not be transferred or possessed except for certain government-related exceptions and machine guns that were lawfully possessed before May 19, 1986. (ATF)
This created the finite civilian transferable machine-gun pool.
A machine gun that was lawfully registered before May 19, 1986 could continue to transfer under the NFA.
A machine gun registered after that date generally could not be transferred to an ordinary civilian.
That is the reason an original transferable M16, MP5 conversion, M60, Thompson, MG34, or other registered machine gun can command a completely different price from a superficially similar pre-sample or post-sample.
The receiver may look almost identical.
The legal status is not.
So What Is a Pre-Sample?
A pre-sample is generally a machine gun that was registered before May 19, 1986 but is subject to restrictions associated with its importation as a dealer sample.
These guns have historically been valuable to FFL/SOT collectors because they could generally be transferred between qualified licensees and, under the applicable rules, could be retained by certain SOTs after leaving the business.
But they were not the same thing as a fully transferable machine gun.
For decades, the market treated that distinction as fundamental.
For example:
A factory German MP5 imported during the appropriate period might be worth substantially less as a restricted pre-sample than a transferable registered receiver MP5 conversion.
An UZI that could only transfer as a pre-sample was fundamentally different from an UZI that could transfer to an ordinary individual on a Form 4.
That distinction is what made the 2024 development so significant.
The Important Exception: Imported for Government Use
ATF’s 2024 guidance explains the critical distinction.
ATF stated that machine guns imported for government use and lawfully possessed before May 19, 1986 are not subject to the §922(o) restrictions if they were lawfully registered and possessed before that date. (ATF)
More importantly, ATF specifically addressed machine guns that were imported for government use.
According to ATF, a machine gun imported for government use, such as pursuant to a purchase contract, and transferred and registered to the government customer upon importation does not remain subject to the same import restriction as a gun that was imported solely as a sales sample. (ATF)
This is the key.
The question is not simply:
“Was this gun imported before May 19, 1986?”
It is also not:
“Was this gun once owned by a police department?”
The critical question is:
“What was the legal history of this particular machine gun when it entered the United States?”
That is why two otherwise identical MP5s can have completely different legal classifications.
ATF’s Three-Part Test
ATF’s 2024 presentation gives a remarkably useful roadmap.
For a pre-1986 imported machine gun to qualify under this government-use theory, ATF says the following questions must be answered yes:
1. Was it lawfully imported before May 19, 1986?
ATF specifically references an ATF Form 6 for the lawful importation and an ATF Form 2 registering the machine gun before May 19, 1986.
2. Was a Form 5 approved transferring and registering the machine gun to the government customer upon importation?
This is one of the most important pieces of the puzzle.
3. Was the machine gun actually transferred to the government customer for official use?
ATF states that if the answer to all three questions is yes, the machine gun is transferable. (ATF)
That is a much narrower and more precise standard than the internet shorthand suggesting that “all pre-samples used by police departments are now transferable.”
They are not.
This Is Why the Paper Trail Matters
Imagine two German MP5s.
Both were manufactured in 1984.
Both were imported into the United States in 1984.
Both eventually ended up in police inventories.
Both eventually ended up with an FFL/SOT.
Both may even have similar serial numbers.
One could potentially qualify for transferable status.
The other could remain a restricted pre-sample.
Why?
Because their original importation histories could be different.
Example A
German MP5 → imported specifically for a police department → registered to that department upon importation → transferred to the department for official use.
This is the type of history ATF identifies as potentially transferable.
Example B
German MP5 → imported as a dealer sales sample → registered to an importer/dealer → later sold or transferred to a police department.
That is a fundamentally different history.
The fact that the gun eventually served with a police department does not automatically erase the original sales-sample restriction.
This is one of the biggest misconceptions surrounding the 2024 development.
The “4,000 Guns” Number
The number 4,000 came from reports surrounding the discussions between ATF and the National Firearms Act Trade and Collectors Association.
The story became widely publicized in 2024, including through Forgotten Weapons and firearms media. Reports described approximately 4,000 previously restricted machine guns as becoming transferable. (Surplused)
But there is an important correction.
ATF later addressed the issue directly.
Its 2024 NFA presentation states:
“ATF is aware that it has been reported that ATF has determined that ‘4,000’ pre-86, imported machineguns are now transferable.”
ATF then states:
“This is false.” (ATF)
So MyFullAuto’s position is simple:
Do not treat 4,000 as an official ATF count of newly transferable machine guns.
The number is useful as a description of the scale that was being discussed in the industry, but ATF has not adopted it as an official number of guns that were automatically converted.
The actual process is firearm-specific.
How Do You Know If Your Pre-Sample Is One of Them?
This is where things get interesting for collectors.
If you own a pre-1986 imported machine gun, do not simply assume it remains a pre-sample because an old Form 3 or Form 5 has a sales-sample restriction.
And do not assume it is transferable simply because the restriction stamp is missing from an old form.
The safest approach is to have ATF determine the status of the specific firearm.
ATF explicitly states that a registrant who believes a pre-1986 imported machine gun is transferable may request a determination.
ATF says the determination is made case by case after an NFA specialist researches the history of the firearm. (ATF)
That is the important part:
Case by case.
Not by model.
Not by manufacturer.
Not simply by serial-number range.
And not merely because the gun once belonged to a police department.
What Information Should You Gather?
Before asking ATF to research a machine gun, gather as much of its historical paperwork as possible.
Ideally, you want:
Current registration paperwork
Older Form 3s
Form 4s
Form 5s
Import documentation
ATF Form 6 information
ATF Form 2 information
Original importer information
Original government agency information
Purchase documentation
Police department documentation
Acquisition and disposition records
Previous transfer paperwork
Any letters from ATF concerning the firearm
Any documentation showing the original government purchase
The serial number is obviously critical.
So are the exact manufacturer, model, caliber, and type.
The objective is to reconstruct the gun’s chain of registration from its entry into the United States.
Do Not Rely Solely on an Old Form
This deserves emphasis.
NFA paperwork is historical evidence, but it is not always the entire story.
An old Form 3 might say “Limited to Use as Sales Sample.”
A later ATF determination may establish that the firearm qualifies as transferable.
Conversely, a missing restriction notation on an old form does not necessarily prove that a machine gun is transferable.
This is not a new problem.
The firearms industry has dealt with NFA registration and classification errors for decades.
The historical record is therefore extremely important.
For a high-value machine gun, a buyer should want documentation establishing exactly why the firearm is transferable, not simply a seller’s statement that “ATF says it is good.”
What About eForms?
For FFL/SOTs, the electronic NFA system can provide useful information regarding restrictions associated with a registered firearm.
However, an eForms screen should not be treated as a substitute for a formal ATF determination when the history of the gun is questionable.
The industry saw considerable discussion in 2024 about using eForms to determine whether dealer-sample restrictions had disappeared from individual firearms. Some dealers reported seeing restrictions disappear from their inventory records. (AR15.com)
That can be an important clue.
It is not the same thing as having ATF’s NFA Division research the historical registration and confirm transferability.
For a $50,000, $100,000 or $200,000 machine gun, the difference matters.
Why Does This Matter So Much?
Because the financial difference between a pre-sample and a transferable machine gun can be enormous.
The underlying firearm may be identical.
The legal classification changes the potential buyer pool.
A restricted pre-sample generally lives within the FFL/SOT world.
A transferable machine gun can potentially transfer to an ordinary qualified individual under the NFA, subject to federal, state and local law and ATF approval. ATF’s current guidance confirms that lawfully registered machine guns possessed before May 19, 1986 can be transferred pursuant to an approved Form 3 or Form 4, as applicable. (ATF)
That difference creates a dramatic difference in market value.
The Value Difference Can Be Huge
There is no universal multiplier.
The difference depends heavily on the firearm.
A common pre-sample machine gun and a rare factory German machine gun can have very different economics.
But the market has provided some dramatic examples.
Madsen M50
The Madsen M50 is a useful example.
Most Madsen M50s historically available in the United States were pre-1986 dealer samples.
After the 2024 development, examples that qualified for transferable status became available to ordinary collectors.
Firearms News reported a transferable Madsen M50 at approximately $24,000 in 2025 and specifically noted that the change in classification had increased the availability and market value of these guns. (Firearms News)
The important point is not that every M50 is worth $24,000.
It is that changing the legal category can fundamentally change the market.
Factory HK Machine Guns
The effect can be even more dramatic with factory HK machine guns.
Before this development, a genuine factory German MP5 was generally something a collector could encounter as a restricted pre-sample, while the transferable market was dominated by registered receivers, conversions, and other transferable configurations.
Once certain original factory guns became eligible for transferable status, collectors suddenly had access to something that had previously been extraordinarily difficult or impossible to own as a transferable factory machine gun.
That created a new category within the collector market.
And because the number of genuine factory examples is much smaller than the number of conventional transferable conversions, prices can become very high.
Contemporary reports from the 2024 Morphy auction described newly transferable factory HK machine guns selling for dramatically more than conventional transferable HK conversions. (AR15.com)
That is the important economic lesson:
Transferability does not simply add value.
It can completely change the category of the firearm.
The HK53 Example
HK53s demonstrate another interesting aspect of the change.
A conventional transferable HK53 conversion already has substantial collector value.
But an original factory HK machine gun with its original configuration and history can command a very different price because collectors are not merely buying “a machine gun that shoots .223.”
They are buying:
Factory origin
Historical configuration
Original receiver
Provenance
Scarcity
Transferable status
The 2024 reclassification created the possibility of genuine factory HK rifles that previously existed only within the restricted dealer-sample market becoming transferable.
That is a major development for serious HK collectors.
The Same Principle Applies to Other Models
The 2024 development was not limited to one model.
Reports and examples have involved guns from manufacturers including:
Heckler & Koch
IMI
Beretta
Walther
FN
Madsen
American 180
Other imported machine guns
The specific model, however, does not determine eligibility.
The individual firearm’s history does.
That distinction cannot be overstated.
You cannot say:
“1984 MP5 = transferable.”
You also cannot say:
“Pre-sample MP5 = not transferable.”
The correct question is:
“What does ATF’s historical record show about this particular serial number?”
A Particularly Important Example for Collectors
Suppose you own a pre-sample HK MP5.
You paid $35,000 for it several years ago because it was a restricted pre-sample.
Today, comparable transferable factory MP5s may command substantially more.
If your particular gun qualifies under ATF’s government-use criteria, its value may have changed dramatically.
But the increase in value does not come simply because the gun is an MP5.
It comes from the combination of:
Factory manufacture
Historical significance
Scarcity
Existing registration
Transferable status
Ability to transfer outside the SOT market
That is why determining the status can be financially important.
What If You Sold One Before 2024?
This is one of the more painful possibilities.
A collector or dealer may have sold a pre-sample in 2023 or early 2024 because it was worth pre-sample money.
If that particular firearm later qualifies as transferable, the economic difference can be substantial.
There is nothing unusual about this from a market-history perspective.
The value of an NFA firearm depends heavily on its legal classification.
When the classification changes, the market value can change with it.
This is one reason old dealer-sample inventories deserve another look.
What Should a Buyer Do?
If you are looking at a machine gun advertised as:
“Former Pre-Sample, Now Transferable”
slow down.
Do not simply assume the description is correct.
Ask:
1. What was the original importation history?
Was it imported for a government agency?
Or was it imported as a dealer sales sample?
2. Was it registered to the government agency upon importation?
ATF specifically identifies this as one of the critical questions.
3. Is there evidence of the original government purchase?
A police department purchase order, Form 5 history, import documentation or other historical documentation can be extremely valuable.
4. Has ATF actually removed the restriction?
Ask for documentation.
5. Has the firearm actually transferred or been approved as transferable?
There is a meaningful difference between:
“ATF told me it should be transferable”
and
“ATF approved a transfer to an individual.”
6. What does the current NFA registration show?
Have the seller or dealer verify the current registry status.
7. What happens if ATF disagrees?
This is especially important when buying an expensive newly transferable machine gun.
A written contractual provision addressing what happens if ATF refuses the transfer can provide significant protection.
Some auction houses selling these newly transferable firearms specifically addressed this issue in their terms because of the unusual classification history. (AR15.com)
What Should Sellers Do?
If you are an FFL/SOT sitting on a large pre-sample inventory, this is worth investigating.
Pull out the old guns.
Start with the imported machine guns that have:
Foreign manufacture
Pre-1986 importation
Government agency history
Old Form 5s
Evidence of direct government purchase
Unusual or highly desirable models
Factory HK, FN, Beretta, IMI, Walther and similar guns
Do not assume every pre-sample qualifies.
Instead, identify candidates and reconstruct their histories.
A single machine gun that changes from pre-sample to transferable can be worth dramatically more than it was before.
For a dealer with dozens or hundreds of pre-samples, the exercise could potentially uncover significant previously unrecognized value.
Why Collectors Should Care Even If They Do Not Own a Pre-Sample
This development also changes how collectors should evaluate the market.
Before 2024, the universe of transferable machine guns was generally thought of as a relatively fixed pool.
The 2024 development demonstrated something important:
The historical NFA registry contains classifications that can be revisited when the underlying registration history is better understood.
That does not mean thousands of machine guns are suddenly going to become transferable.
It does mean that a machine gun’s historical paperwork can be more important than its current description.
The legal history is part of the collectible.
The Biggest Mistake: Assuming the Model Determines the Status
This is probably the single most important lesson from the entire episode.
A machine gun is not transferable because it is:
“an MP5.”
“an HK.”
“an M16.”
“a 1980s gun.”
“a pre-sample.”
“a police gun.”
“an imported gun.”
None of those facts, by themselves, answers the question.
Transferability depends on the specific firearm’s registration and legal history.
ATF’s own presentation makes this explicit by saying the determination depends on the answers to the three historical questions and that the final determination is made individually after an NFA specialist researches the firearm. (ATF)
The Bottom Line for Pre-Sample Owners
If you own a pre-1986 imported machine gun, especially an unusual factory foreign machine gun, don’t automatically assume that its old classification tells the whole story.
Look at its history.
Find the original paperwork.
Determine how it entered the United States.
Determine who it was registered to when it entered the country.
Determine whether it went directly to a government agency for official use.
Then ask ATF to make the determination on that specific firearm.
ATF’s current published guidance is clear that these determinations are made case by case. (ATF)
And that is why the headline “4,000 pre-samples became transferable” is both fascinating and misleading.
There was not a blanket conversion of 4,000 guns.
There was a recognition that certain pre-1986 imported machine guns had a different legal history than their old “dealer sample” classification suggested.
For the right gun, that distinction can mean the difference between a restricted dealer collectible and a transferable machine gun worth many times more.
MyFullAuto’s Advice to Collectors
If you have a pre-1986 imported machine gun sitting in your collection, it may be worth reviewing the paperwork before assuming you know its current market category.
This is particularly true for original foreign-manufactured machine guns that were purchased by police departments or other government agencies during the 1968–1986 period.
Do not rely solely on internet lists.
Do not rely solely on what a previous dealer told you.
And do not assume that every police-used pre-sample is transferable.
The question is what happened to that particular firearm when it entered the United States.
At MyFullAuto.com, we deal with machine guns, NFA firearms, military collectibles and historical firearms, and we understand that the paperwork and provenance can be just as important as the firearm itself.
If you have a pre-sample machine gun and want to determine whether it may qualify for transferable status, we can help you evaluate the firearm’s historical documentation and identify what information should be researched.
MyFullAuto.com buys machine guns, NFA items, military collectibles, individual pieces and entire collections. Contact MyFullAuto for free evaluations and appraisals.
Important Disclaimer
This article is provided for historical and informational purposes only. NFA and firearms laws are complex and can change. The classification of a particular machine gun depends on its individual registration and importation history. ATF states that determinations concerning pre-1986 imported machine guns are made on a case-by-case basis after review by the NFA Division. (ATF)
A seller’s description, an old transfer form, an eForms entry, a serial-number range or an internet discussion should not be treated as a substitute for an ATF determination when the transferability of a valuable machine gun is in question.
Comments