When federal prosecutors add a gun charge in Baton Rouge, LA, 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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Combs Waterkotte represents clients in Baton Rouge, LA when a federal firearm investigation puts their freedom and future on the line. Our federal criminal defense attorneys serving Baton Rouge, LA dig into the government’s theory from every angle, including where the gun was found, who allegedly controlled it, how officers obtained the evidence, and whether the weapon had any real connection to another offense.
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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This page covers:
- 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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What Makes a Gun Charge 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.
Federal jurisdiction may arise when:
- The firearm crossed state lines or otherwise moved through interstate commerce
- The person accused falls within a federally prohibited category
- The gun was allegedly connected to drug trafficking or a violent offense
- Investigators suspect straw purchases, illegal dealing, smuggling, or trafficking
- The weapon is regulated under federal law, such as a machine gun, suppressor, short-barreled firearm, or destructive device
- The serial number was allegedly altered, removed, or obliterated
- The conduct occurred on federal land or drew the attention of a federal task force
- Agents claim the firearm was tied to a gang, criminal organization, or broader conspiracy
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.
What Should You Do If You’re Under Investigation for a Federal Gun Crime in Baton Rouge, LA?
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 Baton Rouge, LA, 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 Weapons Charges You May Face in Baton Rouge, LA
Possession of a Firearm by a Prohibited Person
Under 18 U.S.C. § 922(g), several categories of people are prohibited from possessing firearms 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.
A gun does not necessarily have to be found in someone’s hand or clothing. Prosecutors may allege:
- 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.
Constructive possession is often disputed when a gun is found in a shared home, borrowed vehicle, hotel room, or another location used by several people.
Using, Carrying, or Possessing a Gun Under 18 U.S.C. § 924(c)
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.
A § 924(c) sentence is generally stacked on top of the punishment for the underlying crime rather than served at the same time:
- A five-year minimum for qualifying possession, use, or carrying
- A seven-year minimum when prosecutors prove brandishing
- A 10-year minimum when the firearm was discharged
- Longer mandatory terms for certain machine guns, suppressors, and destructive devices
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
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.
Buying a Firearm for Another Person
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:
- Whose money funded the transaction
- Who chose the specific gun
- What the purchaser intended when completing the sale
- Whether the weapon was bought as a legitimate gift
- Whether the buyer knew the recipient could not lawfully possess it
The government will often try to reconstruct the transaction from beginning to end. That may involve reviewing texts, reimbursements, store footage, purchase documents, online messages, and statements made after the sale.
Firearms Trafficking
Federal firearms trafficking cases often focus on what the accused knew about the destination or intended use of the weapons. 18 U.S.C. § 933 can apply when firearms are allegedly transferred, transported, or received with knowledge or reasonable cause to believe that unlawful conduct will follow.
Conduct that may lead to a federal trafficking charge includes firearms being:
- Bought for someone legally barred from possessing them
- Transported through multiple states or across an international border
- Transferred to people suspected of drug or violent offenses
- Obtained through a chain of straw buyers
- Repeatedly resold outside the federal licensing system
- Exported or smuggled to 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.
Prosecutors may examine:
- 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
False Statements During a Firearm Purchase
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.
The disputed answer may concern:
- The actual transferee or intended recipient
- Felony or other prohibiting convictions
- Unlawful drug use
- Domestic violence history or court orders
- Nationality and immigration status
- Personal identification and residence information
A discrepancy is not the end of the story. Defense counsel may argue that the accused misunderstood the question, relied on incorrect information, did not knowingly lie, or gave an answer that did not affect whether the firearm could be sold.
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.
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.
Homemade and Privately Assembled Firearms
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.
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
Even where the firearm itself is not prohibited, the absence of a required serial number may increase the recommended guideline sentence.
Federal National Firearms Act Charges
A firearm that is lawful in one configuration can fall under much stricter rules after certain modifications. The National Firearms Act governs several categories of weapons and devices through registration, taxation, transfer, and manufacturing requirements.
Weapons and devices commonly regulated by the NFA include:
- Automatic weapons
- Rifles and shotguns below specified barrel-length requirements
- Silencers or sound suppressors
- Destructive devices
- Modified firearms that meet an NFA definition
- Other specially classified weapons
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.
| Type of Federal Firearm Case | Maximum or Mandatory Penalty |
|---|---|
| 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 |
| Possessing, carrying, or using a firearm during a drug trafficking crime or crime of violence under § 924(c) | 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 | As much as 15 years, with enhanced exposure of up to 25 years in qualifying aggravated cases |
| Federal gun trafficking under § 933 | Up to 15 years in federal prison |
| Operating as an unlicensed firearms dealer | Typically punishable by up to five years |
| False statements on firearm purchase paperwork | As much as a decade in federal custody |
| Possessing a firearm with an altered or obliterated serial number under § 922(k) | Generally up to five years in federal prison, with possible sentencing enhancements |
| National Firearms Act violations | As much as 10 years of imprisonment along with fines and forfeiture |
| Possessing or transferring a prohibited automatic weapon | 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.
Additional penalties and long-term consequences may 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
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.
How the Armed Career Criminal Act Can Increase a Gun Sentence
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.
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.
A Baton Rouge, LA federal firearms attorney may dispute:
- The government’s classification of the prior offense
- Ambiguities in charging documents, plea agreements, or judgments
- Whether multiple convictions arose from a single criminal episode
- The present legal status of an old conviction
- Restoration of rights under state or federal law
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.
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.
The advisory guideline range may increase if the government proves factors 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
Federal judges are not required to impose the guideline sentence, but they must begin by calculating it. A defense lawyer can object to enhancements, develop mitigation, seek a downward variance or departure, and explain why a shorter sentence is sufficient under the law.
When Should You Contact a Federal Firearms Defense Lawyer?
Federal investigations often begin long before anyone is arrested. Speaking with a federal defense lawyer as soon as you suspect you are involved may help protect your rights from the very beginning.
You should take the situation seriously if:
- 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.
Call Combs Waterkotte About Your Federal Gun Case
When federal agents and prosecutors are building a gun case, you need counsel familiar with the system from both sides. Combs Waterkotte represents Baton Rouge, LA clients nationwide, and our attorneys include former prosecutors with firsthand knowledge of how federal cases are developed and litigated.
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.
If a negotiated resolution serves your interests, we pursue it with leverage built through preparation. If the government will not offer a fair outcome, we are ready to litigate the case in 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.
If you are under investigation or have been charged with a federal gun offense, don’t wait to protect your rights. Contact us online or call (314) 900-HELP today to discuss your case with an experienced Baton Rouge, LA federal gun charges lawyer.

