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Federal Gun Charges Lawyer Baltimore, MD

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Last Updated: July 22, 2026

When federal prosecutors add a gun charge in Baltimore, MD, the stakes can climb fast. A case that was already serious may suddenly carry mandatory incarceration, consecutive sentencing, property forfeiture, and permanent limits on firearm ownership. These prosecutions are often built by the ATF and the U.S. Attorney’s Office alongside allegations of federal drug crimes, conspiracy, robbery, or violent conduct.

The gun does not have to be used in the way most people imagine. Federal charges may grow out of constructive possession, a straw purchase, false statements to a dealer, access to an unregistered weapon, or a firearm found near alleged criminal activity. In some cases, the firearm allegation is what turns a difficult prosecution into one carrying years of additional prison exposure.


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When federal agents and prosecutors set their sights on someone in Baltimore, MD, Combs Waterkotte is prepared to push back. Our federal criminal defense team serving Baltimore, MD 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?

You should not wait for an indictment to start protecting yourself. If ATF agents have contacted you, you have received a federal target letter, or you believe an arrest or charge is on the horizon, call (314) 900-HELP or contact Combs Waterkotte online. Early decisions often set the board for everything that follows.

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Facing Federal Criminal Charges? Why They’re Different and How to Win

Combs Waterkotte, a leading federal criminal defense law firm, has handled over 10,000 cases successfully. This ebook guides you through the federal criminal defense process, how federal charges are different, and how to win.










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    On this page, you will learn about:

    • Why some gun cases are prosecuted federally instead of by the state
    • How to respond if agents, subpoenas, or a target letter signal an investigation
    • Possession, trafficking, straw purchase, NFA, and related firearm offenses
    • The penalties that can be added to another federal sentence
    • How prior convictions can trigger ACCA exposure
    • When to bring in a federal firearm defense attorney


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    How Federal Jurisdiction Applies to Gun Cases

    A firearm arrest may start with local police, but that does not mean it will stay in state court. Federal prosecutors can take over when the allegations fall under the Gun Control Act, the National Firearms Act, or another federal criminal law. In some cases, state authorities hand the matter over because federal charges offer prosecutors a tougher sentencing path.

    Federal jurisdiction may arise when:

    • A firearm traveled through interstate or foreign commerce
    • The accused is legally prohibited from possessing firearms or ammunition
    • A firearm was allegedly used during a drug trafficking crime or crime of violence
    • The case involves firearm trafficking, smuggling, straw purchasing, or unlicensed dealing
    • The weapon is a machine gun, silencer, short-barreled rifle, short-barreled shotgun, or destructive device
    • The firearm had an altered or removed serial number
    • The alleged conduct occurred on federal property or involved a federal investigation
    • Federal agents believe the firearm is connected to organized criminal activity

    Federal agents rarely start from zero when they make contact. Before you realize a case exists, they may already have video footage, digital communications, witness interviews, firearm tracing records, and laboratory evidence in hand.



    How to Protect Yourself During an ATF Investigation in Baltimore, MD

    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:

    • Do not try to talk your way out of it. Federal agents are trained interviewers, and even an accurate answer can be taken out of context or compared against other evidence. Tell them you want a federal gun charges attorney in Baltimore, MD, then stop answering questions.
    • Respect the warrant without surrendering extra ground. Never interfere with a lawful search, but do not sign consent forms or casually authorize agents to search beyond what the warrant permits.
    • Preserve records that may tell your side of the story. That may include firearm receipts, transfer documents, text messages, emails, photos, location records, and communications with sellers or buyers.
    • Do not contact witnesses or codefendants about the investigation. A message meant to “get everyone on the same page” can be interpreted as witness tampering or obstruction.
    • Get legal representation before the government makes the next move. Early intervention may give your attorney time to investigate, preserve favorable evidence, communicate with prosecutors, and prepare for a search, arrest, or indictment.


    Federal Firearm Offenses Charged in Baltimore, MD


    Felon in Possession of a Firearm

    Under 18 U.S.C. § 922(g), several categories of people are prohibited from possessing firearms or ammunition.

    People who may fall under § 922(g) 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

    These cases often turn on knowledge. Federal prosecutors generally must show that the defendant knowingly possessed the firearm or ammunition and was aware of the relevant status that placed them under the federal ban.

    A gun does not necessarily have to be found in someone’s hand or clothing. Prosecutors may allege:

    • Actual possession: The accused allegedly carried the firearm or had it physically on their body.
    • Constructive possession: The accused allegedly knew where the gun was and had both the power and intent to exercise control over 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)

    A firearm allegation can become its own criminal count when it is tied to certain drug or violent offenses. Under 18 U.S.C. § 924(c), prosecutors may charge a person with using or carrying a gun during a qualifying offense or possessing one to advance that offense.

    The mandatory minimum sentence generally must be served consecutively to the sentence for the underlying offense:

    • 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 firearm does not have to be fired. Prosecutors may argue that a gun advanced or protected the alleged crime because it was found near:

    • Illegal drugs
    • Cash
    • Packaging materials
    • Distribution records
    • Other alleged evidence of trafficking

    A gun near drugs is not automatically a gun possessed “in furtherance” of trafficking. The defense may dispute knowledge, accessibility, ownership, proximity, and whether the firearm had any meaningful relationship to the alleged crime.

    Buying a Firearm for Another Person

    The government may call a transaction a straw purchase when it believes the person at the counter was not the firearm’s true purchaser. What looked like a simple favor, gift, or shared shopping trip may be scrutinized through purchase records, ATF Form 4473, and the federal straw purchasing statute.

    Questions that may determine whether the transaction was lawful include:

    • Payment apps, cash withdrawals, or reimbursements
    • Who researched, requested, or picked out the firearm
    • The buyer’s plan before entering the store
    • Whether the gun was genuinely purchased as a gift
    • Whether the eventual recipient was prohibited or intended to use the firearm unlawfully

    Agents may build the case from messages, bank or payment-app records, dealer paperwork, surveillance video, and whatever the purchaser or recipient said during interviews.

    Firearms Trafficking

    18 U.S.C. § 933 prohibits certain transfers, transportation, or receipt of firearms when the accused knows or has reasonable cause to believe the firearm will be used, possessed, or transferred unlawfully.

    Federal agents may characterize firearms as trafficked when they were allegedly:

    • Purchased for prohibited persons
    • Moved across state or international borders
    • Sold to people involved in drug trafficking or violent crime
    • Acquired through multiple straw purchasers
    • Resold without a required license
    • Smuggled into another country

    Dealing Firearms Without a Federal License

    An individual may lawfully make some private firearm sales without becoming a licensed dealer. Problems arise when federal agents believe the person crossed from disposing of personal property into running a gun business without the required federal firearms license.

    There is no single fact that settles the issue. Investigators may review:

    • 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 Information Given to a Licensed Gun Dealer

    A knowingly false answer given during a firearm transaction can lead to federal charges under 18 U.S.C. § 922(a)(6) if the information mattered to whether the dealer could lawfully complete the sale.

    Federal investigators may focus on statements about:

    • The identity of the actual purchaser
    • A prior criminal conviction
    • Controlled substance use
    • A domestic violence conviction or restraining order
    • Immigration or citizenship status
    • Residence or identification information

    Possible defenses may focus on confusion, an ambiguous question, an honest mistake, or information that was not material to the transaction. The wording of the form and the accused person’s knowledge at the time can matter greatly.

    Defaced or Obliterated Firearm Serial Numbers

    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.

    The serial number itself is only part of the case. Other issues include:

    • Whether the alteration was visible or known to the accused
    • Whether the serial number was legally “removed, obliterated, or altered”
    • What laboratory testing reveals about the original markings
    • Whether prosecutors can prove knowing possession of that specific gun

    An altered serial number may also increase the recommended sentence under the federal sentencing guidelines.

    Federal Charges Involving Privately Made Firearms

    Building or assembling a gun for personal use does not, by itself, automatically make the firearm illegal. Federal problems involving a privately made firearm usually depend on the person involved, the weapon’s configuration, and what happened after it was made.

    Federal agents may look at the entire life of the firearm, including:

    • Who assembled and ultimately possessed it
    • The parts, process, and configuration used to make it
    • Whether it remained for personal use or was transferred to someone else
    • Whether multiple weapons were built for sale
    • Whether federal marking requirements applied
    • Whether the firearm appeared in another criminal investigation

    A privately made firearm can also affect sentencing if prosecutors claim it lacked markings required by federal law.

    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.

    NFA rules may apply to:

    • Machine guns
    • Short-barreled rifles
    • Short-barreled shotguns
    • Silencers and suppressors
    • Destructive devices
    • Certain weapons classified as “any other weapon”

    Federal agents may bring NFA charges when they believe a regulated item was never registered, was made or transferred without approval, or had required markings removed. The potential consequences include substantial fines, forfeiture, and up to a decade in federal custody.



    How Much Prison Time Can a Federal Gun Charge Carry?

    The statute provides only part of the sentencing picture. A person’s record, the characteristics of the weapon, the presence of drugs or violence, mandatory minimum laws, and the United States Sentencing Guidelines can all move the potential punishment higher or lower.

    Federal Gun Offense Potential Penalty
    Felon in possession or another prohibited-person offense 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
    Misrepresenting the true buyer of a firearm 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
    Unlawful transportation or transfer of firearms As many as 15 years behind bars
    Dealing firearms without a required federal license Generally up to five years in federal prison
    Making false statements during a firearm purchase under § 922(a)(6) Potential imprisonment for up to 10 years
    Receiving, transporting, or possessing a firearm with defaced identifying marks Typically punishable by as much as five years, and the serial-number issue may also raise the guideline range
    National Firearms Act violations Potentially a decade in federal custody, plus monetary penalties and seizure of the firearm
    Federal machine gun offenses A possible 10-year sentence on the machine gun charge alone, with more severe consequences if § 924(c) or another enhancement applies


    A statutory maximum does not tell you exactly what sentence the court will impose. Federal judges also consider the offense conduct, firearm characteristics, criminal history, mandatory sentencing laws, and the advisory range produced by the United States Sentencing Guidelines.

    Prison is only one possible consequence of a federal firearm conviction. A sentence may also involve:

    The number announced in court matters. Federal prisoners do not have access to conventional parole, and good-time reductions are limited, so the sentence served is usually close to the sentence ordered.

    The 15-Year Armed Career Criminal Enhancement

    The Armed Career Criminal Act can turn an already serious prohibited-person case into one with a 15-year mandatory minimum. The law is often referred to by its initials, ACCA.

    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.

    Prior convictions do not count merely because prosecutors call them violent or serious. Courts may need to dissect the elements of the earlier statute, examine a limited set of judicial records, and apply federal appellate and Supreme Court decisions that continue to shape ACCA law.

    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

    When three qualifying convictions are required, knocking out one may knock out the entire 15-year mandatory minimum. That can completely reshape the sentencing landscape.

    How Sentencing Enhancements Can Increase a Federal Gun Sentence

    Even when no statutory mandatory minimum applies, the United States Sentencing Guidelines may significantly increase the recommended sentencing range.

    Possible enhancements include allegations involving:

    • Possessing numerous firearms
    • Guns reported stolen
    • Removed, altered, or unreadable serial numbers
    • Supplying firearms to prohibited individuals or trafficking activity
    • Machine guns, suppressors, destructive devices, or other NFA-regulated weapons
    • Using or possessing a firearm during another felony offense
    • Dangerous conduct while attempting to flee law enforcement
    • Directing or organizing other participants
    • Acts prosecutors characterize as obstruction

    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 Hire a Federal Gun Charges Lawyer in Baltimore, MD?

    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.

    Common signs that federal authorities may be building a case include:

    • Federal agents ask to interview you
    • Your home, vehicle, or business is searched pursuant to a warrant
    • A friend, family member, or coworker is served with a subpoena
    • Investigators seize guns, electronic devices, documents, or financial records
    • You receive a target letter from federal prosecutors
    • Someone allegedly connected to the investigation is arrested
    • Your state criminal case suddenly stalls or disappears without explanation
    • You hear that the U.S. Attorney’s Office is reviewing the matter

    The earlier a defense attorney becomes involved, the more options may exist. Depending on the circumstances, counsel can handle communications with investigators, help avoid unnecessary interviews, identify constitutional issues, preserve evidence, assess the strength of the government’s case, and present mitigating information before prosecutors decide whether to seek an indictment.



    Speak With a Federal Gun Charges Lawyer in Baltimore, MD

    When federal agents and prosecutors are building a gun case, you need counsel familiar with the system from both sides. Combs Waterkotte represents Baltimore, MD clients nationwide, and our attorneys include former prosecutors with firsthand knowledge of how federal cases are developed and litigated.

    Every case is prepared with the possibility of trial in mind. We examine the government’s evidence piece by piece, challenge illegal searches, test the reliability of witnesses, and oppose sentencing enhancements that the facts or law do not support.

    Strong negotiation starts with being prepared to try the case. We explore resolutions when they protect the client, but we do not treat a plea as the automatic destination.

    From investigating the government’s theory to preparing for appeal, our team is equipped for the full life of a federal firearm case. Clients benefit from decades of combined experience, dedicated investigative support, and a record of defending people facing life-changing criminal accusations.

    A federal gun investigation can gain momentum long before an indictment is returned. Reach out to our firm online or call (314) 900-HELP today to discuss your options with a Baltimore, MD federal firearm defense lawyer.

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