A federal firearm case in Montana rarely stays confined to the gun itself. One allegation can trigger mandatory prison terms, add time to another sentence, put your firearms at risk of forfeiture, and affect your rights long after the case ends. ATF agents and the U.S. Attorney’s Office frequently pursue these charges as part of broader investigations involving drug trafficking, federal conspiracy, robbery, or violent crimes.
Federal prosecutors do not always need to prove that a weapon was fired, brandished, or even carried. A case may rest on alleged possession, access to a firearm, a purchase made for another person, inaccurate information on federal paperwork, or the ownership of a regulated weapon. In Montana, those allegations can substantially increase the punishment tied to a separate federal offense.
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When federal agents and prosecutors set their sights on someone in Montana, Combs Waterkotte is prepared to push back. Our federal criminal defense team serving Montana looks beyond the fact that a gun was found and asks the questions that can change a case: Who knew it was there? Who could control it? Was the search lawful? Can the government actually connect it to the alleged crime?
Maybe agents have already searched your property. Maybe someone close to you has been questioned. Maybe a target letter just landed in your hands. Whatever tipped you off, do not ignore it. Reach out to Combs Waterkotte or call (314) 900-HELP before speaking with investigators or making a move that cannot be undone.
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Below, we explain:
- What gives the federal government authority over a firearm case
- What not to do when you learn you are under investigation
- Which federal gun charges prosecutors commonly file
- How consecutive sentences and enhancements can increase prison exposure
- Why the Armed Career Criminal Act can change the entire case
- How a federal gun charges lawyer can intervene
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When Does a Firearm Case Become Federal?
Not every federal gun case begins with federal agents at the door. Many start as ordinary state arrests before a task force or U.S. Attorney’s Office steps in. That can happen when the alleged conduct fits a federal offense under the Gun Control Act, the National Firearms Act, or another federal firearms law. Once that happens, the case moves onto a very different playing field.
Common reasons a firearm case enters federal court include:
- A prohibited person allegedly possessed a gun or ammunition
- The weapon allegedly traveled in or affected interstate or foreign commerce
- The firearm was supposedly used, carried, or kept in connection with another federal crime
- The investigation concerns illegal sales, straw buyers, trafficking networks, or cross-border smuggling
- The gun falls into a specially regulated category under federal law
- Authorities discover a defaced or missing serial number
- The incident happened on federal property or during another federal investigation
- The government believes the weapon played a role in organized criminal activity
The first sign of trouble may come late in the investigation. Agents may already have traced the gun, interviewed witnesses, reviewed online activity, pulled phone data, and gathered physical evidence before the accused knows federal prosecutors are involved.
What Should You Do If You’re Under Investigation for a Federal Gun Crime in Montana?
You do not have to be arrested to need a federal defense attorney. By the time ATF agents contact you, execute a search warrant, or ask to speak with you, they may have already spent weeks or months building their case. What you do next can significantly affect the outcome.
If you believe you are under investigation for a federal firearm offense:
- Stop talking and call a federal firearms lawyer in Montana. You are not required to answer questions simply because an agent sounds friendly or says the conversation is informal. Your right to remain silent exists before an arrest, not just after one.
- Do not expand the search for them. If agents present a warrant, remain calm and do not obstruct them. However, you do not have to volunteer access to additional rooms, devices, vehicles, accounts, or property that the warrant does not cover.
- Save everything. Preserve purchase paperwork, receipts, messages, photographs, transfer records, emails, and anything else that may provide context. Deleting material can create a separate problem and may be portrayed as obstruction.
- Keep the case off the group chat. Do not post online, compare stories with witnesses, or discuss details over calls and text messages. The government may later obtain those communications.
- Bring in counsel early. A federal criminal defense attorney in Montana can deal directly with investigators, assess your exposure, and help prevent avoidable damage before charges are filed.
Federal Weapons Charges You May Face in Montana
Unlawful Firearm Possession Under 18 U.S.C. § 922(g)
Under 18 U.S.C. § 922(g), several categories of people are prohibited from possessing firearms or ammunition.
Prohibited persons may include:
- A criminal record involving an offense punishable by more than one year
- An active fugitive status
- Alleged unlawful controlled-substance use
- Certain restraining orders involving an intimate partner or child
- A qualifying domestic violence conviction
- Particular immigration classifications or a dishonorable military discharge
Prosecutors generally must establish that the accused knowingly possessed the firearm or ammunition and knew of the status that made possession unlawful.
Possession may be:
- Actual possession: The firearm was allegedly found directly on the person.
- Constructive possession: The person allegedly knew the firearm was present and had the ability and intention to control it.
A gun found under the same roof is not automatically possessed by everyone inside. When several people use the home, vehicle, room, or container where the weapon was recovered, the government’s control-and-knowledge theory may be open to challenge.
Using, Carrying, or Possessing a Gun Under 18 U.S.C. § 924(c)
18 U.S.C. § 924(c) makes it a separate federal offense to use or carry a firearm during and in relation to a qualifying crime of violence or drug trafficking crime, or to possess one in furtherance of such a crime.
Because these penalties are typically consecutive, the firearm count can add the following time after the sentence for the underlying crime:
- Possession, use, or carrying: A minimum of five years
- Brandishing: A minimum of seven years
- Discharging the firearm: A minimum of 10 years
- Machine guns, silencers, or destructive devices: Potentially much higher mandatory minimums
The prosecution may describe a firearm as a tool of the alleged offense even when it stayed hidden or untouched. That argument commonly relies on its location near:
- Drugs or suspected drugs
- Cash allegedly connected to sales
- Scales, containers, or packaging materials
- Phones, notebooks, or transaction records
- Additional evidence of an alleged trafficking operation
The defense may challenge whether the accused knew about the firearm, could access it, or possessed it for any reason connected to the alleged offense.
Straw Purchasing a Firearm
A straw purchase generally occurs when one person buys a firearm for someone else while falsely claiming to be the actual buyer. Charges may arise from statements made on ATF Form 4473 or under 18 U.S.C. § 932.
The government and defense may focus on:
- Whether another person supplied the purchase money
- Who directed the buyer toward a particular firearm
- Any agreement to transfer the gun after the sale
- The difference between a lawful gift and a purchase made as someone else’s agent
- What the buyer knew about the recipient’s background and intentions
These cases leave a digital and documentary trail. Prosecutors may rely on Form 4473, receipts, cash transfers, text conversations, security footage, firearm tracing records, and interview statements to argue who the real buyer was.
Federal Firearms Trafficking Charges
Under 18 U.S.C. § 933, federal prosecutors may pursue trafficking charges when they believe someone knowingly moved, received, or transferred firearms headed for unlawful possession or use.
Conduct that may lead to a federal trafficking charge includes firearms being:
- Supplying guns to prohibited recipients
- Moving firearms across state lines as part of a broader operation
- Providing weapons for alleged drug trafficking or violent conduct
- Using several purchasers to avoid detection
- Operating what prosecutors view as an unlicensed resale business
- Sending firearms outside the United States unlawfully
Unlicensed Firearms Dealing
The legal line between a private seller and an unlicensed firearms dealer depends on the surrounding facts. Federal law generally requires an FFL when someone is engaged in firearm sales as a business, but it does not convert every personal transfer into a federal crime.
To argue that someone was acting as a dealer, the government may look at:
- How many firearms were sold and how often sales occurred
- Whether guns were purchased and quickly resold
- Online listings, advertisements, or social media offers
- Messages with prospective buyers and records of payment
- Whether the person expected to earn money from the transactions
- Whether firearms were kept on hand for future customers
False Statements During a Firearm Purchase
Under 18 U.S.C. § 922(a)(6), it is illegal to knowingly make a false statement to a federally licensed firearms dealer when that statement is material to the legality of the sale.
Alleged false statements may involve:
- Who was actually purchasing the gun
- Whether the buyer had a disqualifying criminal record
- Current or recent controlled-substance use
- Domestic violence convictions or restraining orders
- Immigration classification or citizenship
- Where the person lived or whether the identification was accurate
The defense may challenge whether the answer was actually false, whether the accused knowingly provided incorrect information, and whether the statement affected the legality of the transaction.
Federal Charges Involving an Altered Firearm Serial Number
Federal law restricts the knowing possession, receipt, or transportation of certain firearms whose serial numbers have been changed, removed, or made unreadable. The relevant regulation appears at 27 CFR § 478.34.
Defense counsel may examine:
- Knowledge of the damaged serial number
- The degree and legal significance of the alteration
- Whether experts can recover the firearm’s identifying information
- Whether the gun was actually possessed or controlled by the accused
The alleged alteration can affect more than guilt or innocence. It may also support an enhancement when the sentencing guidelines are calculated.
Privately Made Firearms and “Ghost Guns”
The label “ghost gun” can make a case sound simpler than it is. A privately assembled firearm may be lawful in some circumstances, while its possession, manufacture, sale, or markings may create federal exposure in others.
Key issues in these cases include:
- Who possessed the firearm
- How it was manufactured
- Whether it was transferred or sold
- Whether the accused was acting as a firearms manufacturer or dealer
- Whether required markings were missing
- Whether the firearm was connected to other illegal conduct
Sentencing enhancements may also apply in some cases involving firearms without required serial numbers.
NFA Weapons and Registration Offenses
Certain firearms and devices are subject to stricter federal controls under the National Firearms Act. The law regulates their registration, manufacture, taxation, possession, and transfer.
The Act covers categories such as:
- Fully automatic firearms and machine guns
- Rifles with barrels or overall lengths below federal limits
- Short-barreled shotguns
- Firearm silencers and suppressors
- Explosive or other qualifying destructive devices
- Weapons falling within the federal “any other weapon” category
The issue may be registration, how the weapon was built, how it changed hands, or whether identifying marks were removed. These are felony-level allegations, and a conviction may carry up to 10 years of imprisonment along with fines and loss of the weapon.
How Much Prison Time Can a Federal Gun Charge Carry?
There is no universal sentence for a federal gun conviction. Prison exposure can change based on the charge, the firearm involved, prior convictions, any connection to another alleged crime, and the calculation required by the federal sentencing guidelines.
| Federal Gun Offense | Possible Federal Sentence |
|---|---|
| Possessing a gun or ammunition while federally prohibited | Ordinarily punishable by as much as 15 years; the Armed Career Criminal Act may require at least 15 years for qualifying defendants |
| A § 924(c) firearm charge tied to drug trafficking or a qualifying violent offense | A consecutive mandatory term beginning at five years and increasing based on how the firearm was allegedly used |
| Buying a firearm for another person under § 932 | Up to 15 years, or up to 25 years when the buyer knows or has reason to believe the firearm will be used to commit certain serious crimes |
| Federal gun trafficking under § 933 | As many as 15 years behind bars |
| Dealing firearms without a required federal license | Typically punishable by up to five years |
| Knowingly providing material false information to a licensed firearm dealer | A maximum sentence of 10 years |
| Knowing possession of a gun with a removed or changed serial number | Typically punishable by as much as five years, and the serial-number issue may also raise the guideline range |
| Federal charges involving silencers, short-barreled firearms, machine guns, or other NFA items | A possible 10-year prison term, financial penalties, and loss of the weapon |
| Illegal machine gun possession or transfer | A possible 10-year sentence on the machine gun charge alone, with more severe consequences if § 924(c) or another enhancement applies |
The penalties listed above are starting points, not predictions. The sentence in a particular case may rise or fall based on the statute charged, the number and type of weapons, prior convictions, any mandatory minimum, and the calculation required by the federal sentencing guidelines.
Federal sentences may also include:
- Substantial fines
- Supervised release after imprisonment
- Forfeiture of firearms, ammunition, money, vehicles, or other property
- Loss of firearm rights
- Restrictions on employment, housing, and professional licensing
- Immigration consequences for noncitizens
There is no traditional parole in the federal system. Limited good-time credit may reduce an eligible person’s release date, but most of the sentence pronounced by the judge will still have to be served.
The Armed Career Criminal Act
The Armed Career Criminal Act, commonly called the ACCA, can transform a felon-in-possession case into one carrying a mandatory minimum sentence of 15 years.
The enhancement may apply when a person convicted under 18 U.S.C. § 922(g) has three qualifying prior convictions for violent felonies, serious drug offenses, or both, committed on occasions different from one another.
Whether a prior conviction qualifies is frequently disputed. Courts must analyze the statute underlying the earlier conviction, the available court records, and evolving federal case law. The label placed on a state offense does not always determine whether it counts under the ACCA.
Defense counsel may attack the enhancement by examining:
- Whether the prior offense meets the federal definition
- Whether the conviction records establish the required elements
- Whether multiple offenses occurred on different occasions
- Whether a conviction was vacated, expunged, or otherwise invalid
- Whether the accused’s civil rights had been restored
An ACCA case can hinge on a single prior offense. If one conviction does not qualify, the mandatory minimum may no longer apply, potentially removing years from the defendant’s exposure.
How Sentencing Enhancements Can Increase a Federal Gun Sentence
The sentence in a federal firearm case is influenced by more than the statute itself. Even when the law does not require a mandatory minimum prison term, guideline enhancements may substantially increase the advisory sentencing range.
Federal prosecutors may seek sentencing increases based on allegations such as:
- The quantity of firearms involved
- Whether any firearm was stolen
- Defaced or missing identifying markings
- Transfers to prohibited persons or alleged trafficking schemes
- Possession of specially regulated NFA firearms or devices
- A connection between the firearm and separate felony conduct
- Reckless behavior during an attempted escape
- An alleged leadership or supervisory role
- Conduct the government claims obstructed the investigation or prosecution
The advisory guideline range is only one part of the sentencing decision, but it carries significant weight. Defense counsel may dispute factual allegations, challenge the legal basis for enhancements, present mitigating information, and advocate for a sentence below the recommended range.
When Should You Contact a Federal Firearms Defense Lawyer?
If ATF agents or federal prosecutors are looking at your case, early legal representation can matter. You do not have to wait until you are arrested, indicted, or standing in court before contacting an attorney.
Possible indicators of a federal investigation include:
- ATF, FBI, DEA, or task force agents attempt to question you
- Agents execute a search warrant at your home or business
- Someone close to you receives a subpoena
- Law enforcement seizes firearms, phones, computers, or records
- You receive a federal target letter
- A codefendant or alleged associate is arrested
- A state firearm case is dismissed or delayed without explanation
- You learn that federal prosecutors are reviewing your case
An early defense strategy is often very different from a trial strategy. Before an indictment, counsel may be able to communicate with federal agents, protect you from making damaging statements, investigate the facts, analyze search and seizure issues, and provide prosecutors with information that could influence charging decisions.
Contact Combs Waterkotte About Federal Gun Charges in Montana
Combs Waterkotte defends clients from Montana and across the country against serious federal criminal allegations. Our team includes former prosecutors who know how the government builds firearm cases from the investigation through trial.
We do not wait until the courthouse doors open to prepare for trial. Our attorneys investigate the facts, review search warrants and seizure procedures, examine witness credibility, and challenge unsupported allegations that could increase federal sentencing exposure.
When negotiations make sense, we negotiate from a position of strength. When they don’t, we are prepared to take your case to court.
High-stakes federal cases require more than surface-level review. Combs Waterkotte combines decades of criminal defense experience with a dedicated investigator and a team accustomed to defending serious charges from the first contact with agents through trial and post-conviction proceedings.
Do not wait for the government to make the next move. If you are facing a federal firearm investigation or charge, contact us online or call (314) 900-HELP to discuss your case with an experienced Montana federal gun defense attorney.
