Federal gun charges in Miami, FL can turn an already serious criminal case into one carrying mandatory prison time, consecutive sentences, firearm forfeiture, and lasting restrictions on your rights. These cases are commonly investigated by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and prosecuted by the U.S. Attorney’s Office, often alongside federal drug trafficking, conspiracy, robbery, or violent crime allegations.
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 Miami, FL, those allegations can substantially increase the punishment tied to a separate federal offense.
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Combs Waterkotte defends people in Miami, FL facing high-stakes federal investigations and prosecutions throughout the United States. Our Miami, FL federal criminal defense lawyers examine how the firearm was discovered, whether prosecutors can prove knowing possession, whether the weapon was connected to another alleged crime, and whether law enforcement violated your constitutional rights.
Federal cases often take shape quietly, long before charges appear on a docket. If you have been arrested, contacted by ATF, warned that you are under investigation, or received a target letter, call (314) 900-HELP or contact our firm online. The earlier the defense gets involved, the more room there may be to influence what comes next.
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On this page, you will learn about:
- How firearm allegations enter the federal system
- Steps to take when ATF or federal prosecutors are investigating you
- The gun crimes most often charged in federal court
- How mandatory prison terms and guideline enhancements work
- When the Armed Career Criminal Act may apply
- Why early legal representation matters
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How Federal Jurisdiction Applies to Gun Cases
Most firearm cases begin under state law. However, a case may enter the federal system when the alleged conduct violates the federal Gun Control Act, the National Firearms Act, or another federal statute. State and local authorities may also refer a case to federal prosecutors when they believe federal penalties will be more severe.
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
By the time a person learns about the investigation, agents may already have collected surveillance footage, phone records, social media posts, witness statements, firearm traces, and forensic evidence.
What Should You Do If You’re Under Investigation for a Federal Gun Crime in Miami, FL?
Federal investigations usually develop quietly. If agents have reached out, searched your property, questioned someone close to you, or asked you to “clear a few things up,” assume the case is already moving. You should treat every conversation and decision as part of the defense.
Take the following steps as soon as you suspect a federal firearms investigation:
- 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 Miami, FL, 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 Miami, FL
Felon in Possession of a Firearm
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.
People who may fall under § 922(g) include:
- People convicted of crimes punishable by more than one year in prison
- Fugitives from justice
- Unlawful users of controlled substances
- Certain people subject to domestic violence restraining orders
- People convicted of qualifying domestic violence offenses
- Certain noncitizens and people dishonorably discharged from the military
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.
Possession may be:
- Physical possession: The firearm was allegedly recovered directly from the accused.
- Constructive possession: The government argues that the accused exercised dominion or control over the firearm even though someone else may have been closer to 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.
Federal Gun Enhancements for Drug and Violent Offenses
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.
A § 924(c) sentence is generally stacked on top of the punishment for the underlying crime rather than served at the same time:
- At least five years for possessing, using, or carrying a firearm
- At least seven years if the firearm was brandished
- At least 10 years if the firearm was discharged
- Higher minimums when machine guns, silencers, or destructive devices are involved
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:
- Narcotics
- Money
- Packaging equipment
- Sales or distribution records
- Anything else agents label as evidence of trafficking
The key fight may be over the connection between the person, the firearm, and the underlying offense. Defense counsel can challenge whether the accused knew the gun was there, had the ability to reach or control it, or possessed it to advance any criminal activity.
Straw Purchasing a Firearm
A lawful-looking retail purchase can become a federal case when agents believe the named buyer was only standing in for another person. These straw purchase investigations often center on what the buyer intended and what they reported on Form 4473. Prosecutors may also rely on 18 U.S.C. § 932.
A straw purchase investigation often comes down to details such as:
- 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
Potential evidence may include text messages, payment records, store surveillance, purchase forms, and statements made to investigators.
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.
Firearms trafficking allegations may involve weapons that were:
- 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
Selling Guns Without a Federal Firearms 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 volume and regularity of transactions
- How long the accused kept each firearm before selling it
- Whether buyers were solicited through websites, forums, or personal networks
- Cash, electronic payments, and customer conversations
- Whether the sales produced or were intended to produce profit
- Evidence of inventory, repeat customers, or ongoing operations
Lying on a Federal Firearm Purchase Form
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.
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.
Important questions may include:
- 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.
Federal Charges Involving Privately Made 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.
A privately made firearm case may turn on:
- The accused person’s legal ability to possess guns
- Whether the firearm was assembled lawfully
- Any later sale, transfer, or distribution
- Evidence of commercial manufacturing or dealing
- Missing, incomplete, or altered identifying marks
- An alleged connection to trafficking, drugs, or violent crime
Even where the firearm itself is not prohibited, the absence of a required serial number may increase the recommended guideline sentence.
National Firearms Act Violations
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.
Weapons and devices commonly regulated by the NFA include:
- 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.
Federal Firearm Sentences in Miami, FL
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 | Possible Federal Sentence |
|---|---|
| Possession by a prohibited person under 18 U.S.C. § 922(g) | 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 | 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 | A maximum of 15 years in ordinary cases, potentially rising to 25 years when the weapon is believed destined for certain serious offenses |
| Firearms trafficking under 18 U.S.C. § 933 | As many as 15 years behind bars |
| Selling guns as a business without an FFL | A possible federal sentence of as much as five years |
| False statements on firearm purchase paperwork | 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 |
| Offenses involving unregistered or unlawfully transferred NFA weapons | Potentially a decade in federal custody, plus monetary penalties and seizure of the firearm |
| Possessing or transferring a prohibited automatic weapon | Up to a decade in many cases, before accounting for mandatory consecutive time or other charges tied to the weapon |
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.
Additional penalties and long-term consequences may include:
- Large financial penalties
- A term of federal supervised release following incarceration
- Seizure and forfeiture of guns, ammunition, cash, vehicles, and other alleged proceeds or instrumentalities
- Permanent or long-term restrictions on possessing firearms
- Barriers involving jobs, housing opportunities, and professional credentials
- Removal, inadmissibility, or other immigration problems for noncitizens
A federal sentence is not typically cut short through parole. Although some prisoners can earn good-conduct credit, federal incarceration generally means serving the great majority of the term imposed.
Federal Gun Charges and the ACCA
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.
ACCA may apply to a person convicted under 18 U.S.C. § 922(g) who has three qualifying prior convictions involving violent felonies, serious drug crimes, or some combination of the two, so long as the offenses occurred on different occasions.
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.
A Miami, FL federal firearms attorney may dispute:
- Whether the earlier conviction legally qualifies as a violent felony or serious drug offense
- Whether the permitted court records prove the necessary version of the offense
- Whether the prior crimes were truly committed on separate occasions
- Whether any conviction was overturned, set aside, expunged, or invalidated
- Whether firearm rights or other civil rights were restored
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.
How Sentencing Enhancements Can Increase a Federal Gun Sentence
A firearm case can carry substantial sentencing exposure even without a mandatory minimum. The United States Sentencing Guidelines may recommend a much higher prison range based on specific offense characteristics.
Federal prosecutors may seek sentencing increases based on allegations such as:
- Multiple firearms
- Stolen firearms
- Firearms with altered, obliterated, or missing serial numbers
- Trafficking or transferring firearms to prohibited persons
- Possession of a machine gun, silencer, destructive device, or other NFA weapon
- Possession or use of a firearm in connection with another felony
- Reckless endangerment during flight
- A leadership or organizational role
- Obstruction of justice
The sentencing guidelines are advisory, but federal judges must calculate and consider them. Defense counsel can challenge enhancements, present mitigating evidence, seek departures or variances, and argue that the recommended range is greater than necessary.
When to Call a Federal Gun Defense Attorney
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 another federal agency contacts you
- Agents arrive with a federal search warrant
- A subpoena is issued to someone connected to you
- Firearms, computers, phones, or business records are confiscated
- A federal target letter arrives
- An alleged accomplice or codefendant is taken into custody
- A state prosecution unexpectedly pauses or is dismissed
- You discover federal prosecutors have become involved
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 Miami, FL
Combs Waterkotte represents Miami, FL clients in complex federal criminal cases across the United States. Our attorneys include former prosecutors who understand how federal cases are investigated, charged, and tried.
Our defense begins with a hard look at how the case was built. That may mean attacking an unlawful search, exposing weaknesses in witness testimony, disputing possession, and fighting guideline enhancements that could add years to the sentence.
When negotiations make sense, we negotiate from a position of strength. When they don’t, we are prepared to take your case to court.
With decades of combined criminal defense experience, a dedicated investigator on staff, and a record of defending clients against some of the most serious state and federal charges, our team has the resources and experience to handle high-stakes firearm cases from investigation through trial and appeal.
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 Miami, FL federal firearm defense lawyer.

