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Federal Gun Charges Lawyer San Bernardino, CA

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Last Updated: July 22, 2026

When federal prosecutors add a gun charge in San Bernardino, CA, 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.

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 San Bernardino, CA, those allegations can substantially increase the punishment tied to a separate federal offense.


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A federal gun case can be built on assumptions that deserve to be challenged. Combs Waterkotte defends clients in San Bernardino, CA and across the country, and our San Bernardino, CA federal defense lawyers investigate the search, the alleged possession, the firearm’s ownership, the surrounding circumstances, and every possible constitutional violation.

If you have been arrested, received a target letter, learned that ATF agents are investigating you, or believe federal charges may be coming, contact us online or call (314) 900-HELP immediately. What happens before an indictment can shape the entire case.

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    On this page, you will learn about:

    • What makes a gun charge a federal offense
    • What to do if you’re under federal investigation
    • Common federal firearm charges
    • Mandatory minimums and sentencing enhancements
    • The Armed Career Criminal Act
    • When to hire a federal gun charges lawyer


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    What Makes a Gun Charge Federal?

    The line between a state gun case and a federal prosecution is not always obvious. A case may cross that line because of the weapon involved, the accused person’s legal status, the location of the alleged conduct, or a claimed connection to interstate commerce. Violations of the Gun Control Act, the National Firearms Act, or another federal statute may give the U.S. government authority to prosecute. Local agencies can also refer cases upward when they want federal prosecutors to pursue harsher consequences.

    A gun case may draw federal attention when:

    • 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

    These investigations often run quietly in the background. By the time agents knock, call, or execute a warrant, they may have spent months reviewing phones, social media accounts, purchase records, surveillance, witness statements, and forensic testing.



    Under Federal Gun Investigation in San Bernardino, CA? Take These Steps

    You may need a lawyer long before formal charges appear. Once ATF agents begin asking questions or executing warrants, the investigation may already be well underway. This is not the moment to improvise, explain, or hope the problem disappears on its own.

    If you believe you are under investigation for a federal firearm offense:

    • Do not speak with federal agents without a federal firearms attorney in San Bernardino, CA. You have the right to remain silent. Even truthful statements can be misunderstood or used against you later.
    • Do not consent to additional searches. If agents have a warrant, do not interfere, but you are not required to give permission for searches beyond the warrant’s scope.
    • Preserve potential evidence. Keep text messages, emails, receipts, firearm purchase records, photographs, and other documents that may help explain what happened. Do not delete or destroy anything.
    • Avoid discussing the investigation with others. Phone calls, text messages, emails, and social media posts can become evidence. Conversations with friends, family members, or potential witnesses may also be scrutinized.
    • Contact a federal criminal defense lawyer in San Bernardino, CA immediately. Early representation can protect your rights, prevent unnecessary mistakes, and allow your attorney to communicate with investigators on your behalf.


    Federal Firearm Offenses Charged in San Bernardino, CA


    Federal Prohibited-Person Firearm Charges

    Federal law does not limit unlawful-possession charges to people with felony convictions. 18 U.S.C. § 922(g) identifies several groups of people who may not legally possess a firearm or ammunition.

    The federal prohibition may apply to:

    • Individuals with certain felony or felony-level convictions
    • People accused of fleeing to avoid prosecution
    • People considered unlawful users of illegal drugs or other controlled substances
    • Individuals covered by certain domestic protection orders
    • People convicted of qualifying misdemeanor domestic violence crimes
    • Some noncitizens and former service members who received dishonorable discharges

    A conviction ordinarily requires more than showing that a gun was nearby. The government generally must prove knowing possession and that the accused knew they belonged to the category that prohibited possession.

    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.

    Shared spaces create room for reasonable doubt. If the firearm was found in a jointly occupied apartment, another person’s car, a motel room, or an area open to multiple people, prosecutors still must tie the accused personally to the weapon.

    Possessing a Firearm During a Drug Trafficking Crime or Crime of Violence

    Under 18 U.S.C. § 924(c), the government may pursue an additional charge when a firearm was allegedly used or carried in relation to a drug trafficking crime or crime of violence, or possessed in furtherance of one.

    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

    No shot needs to be fired for prosecutors to bring this charge. They may claim the firearm helped secure, protect, or advance the alleged operation because it was located close to:

    • Narcotics
    • Money
    • Packaging equipment
    • Sales or distribution records
    • Anything else agents label as 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.

    Straw Purchasing a Firearm

    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:

    • Who paid for the firearm
    • Who selected the firearm
    • The buyer’s intent at the time of purchase
    • Whether the firearm was intended as a lawful gift
    • What the purchaser knew about the eventual recipient

    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

    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.

    Firearms trafficking allegations may involve weapons that were:

    • Purchased using another person’s name or eligibility
    • Moved from a state with looser availability into another jurisdiction
    • Sold to alleged gang members, traffickers, or violent offenders
    • Acquired through coordinated straw purchase schemes
    • Bought and flipped without a required dealer’s license
    • Concealed or transported for unlawful export

    Dealing Firearms Without a Federal License

    Federal law generally requires a person who is engaged in the business of dealing firearms to obtain a federal firearms license. An occasional private sale does not automatically make someone a firearms dealer.

    The case may turn on the overall pattern of activity, including:

    • The number and frequency of sales
    • How quickly firearms were resold after purchase
    • Whether the accused advertised firearms for sale
    • Customer communications and payment records
    • Whether transactions were intended to produce a profit
    • Whether the accused maintained firearm inventory

    Lying on a Federal Firearm Purchase Form

    Federal prosecutors may charge a person for allegedly lying to a licensed firearms dealer about a fact that could affect the transaction. Section 922(a)(6) generally requires proof that the statement was knowingly false and material to the legality of the purchase.

    Federal investigators may focus on statements about:

    • 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.

    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 case may depend on questions such as:

    • Whether the accused knew the serial number had been altered
    • Whether the markings meet the statutory definition
    • Whether forensic testing can recover the original number
    • Whether the government can connect the accused to the firearm

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

    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

    Unserialized firearms may bring an additional sentencing problem, particularly when the federal guidelines call for an enhancement.

    NFA Weapons and Registration Offenses

    The NFA creates a separate federal framework for weapons lawmakers placed under heightened regulation. Compliance may involve registration, tax payments, transfer approval, and manufacturing rules.

    NFA rules may apply to:

    • Machine guns
    • Shortened rifles
    • Shortened shotguns
    • Suppressors, including devices commonly called silencers
    • Certain bombs, explosives, and destructive devices
    • Unusual or concealed weapons classified as “any other weapon”

    Charges may involve possessing an unregistered weapon, illegally manufacturing or transferring one, or possessing a firearm with required identifying information removed. A conviction can carry up to 10 years in federal prison, fines, and forfeiture.



    Potential Punishment for Federal Weapons Offenses in San Bernardino, CA

    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 Firearm Charge Possible Federal Sentence
    Unlawful firearm possession by a prohibited person under § 922(g) Up to 15 years in many cases, with a 15-year mandatory floor when ACCA applies
    Firearm possession or use connected to a drug trafficking crime or crime of violence Five years or more added to the underlying sentence, with seven years for brandishing and 10 years for firing the weapon
    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
    Engaging in the business of firearm sales without federal licensing Typically punishable by up to five years
    Making false statements during a firearm purchase under § 922(a)(6) Up to 10 years in federal prison
    Knowing possession of a gun with a removed or changed serial number Up to five years in many cases, with further sentencing exposure through an enhancement
    Federal charges involving silencers, short-barreled firearms, machine guns, or other NFA items Potentially a decade in federal custody, plus monetary penalties and seizure of the firearm
    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


    These are general statutory penalties. The actual sentencing range may depend on the specific charge, the type and number of firearms involved, the defendant’s criminal history, applicable mandatory minimums, and the United States Sentencing Guidelines.

    Even after the prison term is calculated, the court may impose or trigger:

    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.

    Federal Gun Charges and the ACCA

    A standard felon-in-possession prosecution can take a drastic turn when prosecutors invoke the Armed Career Criminal Act. If the enhancement applies, the sentencing floor becomes 15 years in federal prison.

    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.

    ACCA litigation can become highly technical. The court may compare the wording of the prior state statute to the federal definition, review charging papers or plea records, and determine which version of the law controls. A state-law label is not necessarily the final word.

    An experienced San Bernardino, CA federal gun charges lawyer may challenge:

    • Whether the statute of conviction is broader than ACCA’s federal definition
    • Whether the government can prove the specific subsection or elements involved
    • The timing, location, and relationship between the alleged prior offenses
    • Vacatur, expungement, pardon, or other relief affecting a conviction
    • Any restoration of civil and firearm rights

    The math is unforgiving: the government needs three qualifying predicates. A successful challenge to even one of them may be the difference between an ordinary § 922(g) sentence and at least 15 years in federal prison.

    Federal Firearm Sentencing Guideline Enhancements

    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:

    • 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.

    Do You Need a Federal Gun Charges Lawyer?

    You should contact a federal defense lawyer in San Bernardino, CA as soon as you believe an investigation may involve you. You do not need to wait for an arrest or indictment.

    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 San Bernardino, CA

    Federal firearm cases move quickly and carry enormous consequences. Combs Waterkotte represents people in San Bernardino, CA and nationwide, drawing on the insight of former prosecutors who understand federal investigations, charging decisions, and courtroom strategy.

    We approach every case with a trial-ready mindset, thoroughly examining the government’s evidence, challenging unlawful searches and seizures, scrutinizing witness credibility, and fighting unsupported sentencing enhancements.

    Some cases should be resolved through negotiation. Others demand a courtroom fight. We prepare for both, so every decision is based on strategy rather than pressure.

    Our firm brings decades of combined defense experience, an in-house investigator, and a history of handling severe state and federal allegations. We have the personnel and resources to defend firearm cases at every stage, including investigation, indictment, trial, sentencing, and appeal.

    If federal agents are investigating you or charges have already been filed, now is the time to protect yourself. Contact Combs Waterkotte online or call (314) 900-HELP to speak with an experienced federal gun charges attorney serving San Bernardino, CA.

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