A federal firearm case in San Jose, CA 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.
You can face a federal gun charge without ever pulling a trigger. The government may focus instead on where the firearm was found, who could control it, how it was purchased, whether registration rules were followed, or what was written on a purchase form. Once attached to another case in San Jose, CA, a firearm count can become the part that drives the sentence.
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Combs Waterkotte defends people in San Jose, CA facing high-stakes federal investigations and prosecutions throughout the United States. Our San Jose, CA 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.
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
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This guide addresses:
- 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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How Federal Jurisdiction Applies to Gun Cases
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
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.
How to Protect Yourself During an ATF Investigation in San Jose, CA
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 federal agents may be building a gun case against you:
- Stop talking and call a federal firearms lawyer in San Jose, CA. 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 San Jose, CA can deal directly with investigators, assess your exposure, and help prevent avoidable damage before charges are filed.
Types of Federal Gun Charges in San Jose, CA
Possession of a Firearm by a Prohibited Person
A person may face a federal gun charge based on their legal status rather than how the firearm was allegedly used. Under 18 U.S.C. § 922(g), firearm and ammunition possession is prohibited for several categories of restricted persons.
A person may be legally barred from possessing a gun or ammunition because of:
- 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
The prosecution must generally connect two pieces of the puzzle: the accused knowingly possessed the gun or ammunition, and they knew about the legal status that made that possession prohibited.
A gun does not necessarily have to be found in someone’s hand or clothing. Prosecutors may allege:
- Direct or actual possession: Agents or officers claim the weapon was in the person’s hand, pocket, waistband, bag, or immediate physical custody.
- Constructive possession: Prosecutors claim the person was not holding the gun but knew it was present and could control what happened to 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.
Firearm Charges Connected to Drug Trafficking or Violent Crime
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.
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
A § 924(c) theory may rest entirely on where the gun was found. The government often argues that proximity to the following items shows the firearm was kept to further the alleged crime:
- Narcotics
- Money
- Packaging equipment
- Sales or distribution records
- Anything else agents label as 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.
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
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.
Transporting or Transferring Firearms Unlawfully
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.
Federal agents may characterize firearms as trafficked when they were allegedly:
- 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.
To argue that someone was acting as a dealer, the government may look at:
- 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
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.
Federal investigators may focus on statements about:
- 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
The government must do more than point to an inaccurate box on a form. The defense may dispute whether the response was truly false, whether the accused understood it was wrong, or whether it made any legal difference to the sale.
Defaced or Obliterated Firearm Serial Numbers
Under 27 CFR § 478.34, federal law prohibits knowingly transporting, receiving, or possessing certain firearms with serial numbers that have been removed, altered, or obliterated.
The case may depend on questions such as:
- 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
The alleged alteration can affect more than guilt or innocence. It may also support an enhancement when the sentencing guidelines are calculated.
Homemade and Privately Assembled Firearms
A privately made firearm is not automatically illegal simply because an individual assembled it. Criminal exposure may arise depending on:
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
Sentencing enhancements may also apply in some cases involving firearms without required serial numbers.
Federal National Firearms Act Charges
The National Firearms Act imposes registration, taxation, manufacturing, and transfer requirements on certain weapons and devices.
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
An NFA prosecution may be based on alleged possession of an unregistered weapon, unlawful manufacture or transfer, or missing required identifying information. Depending on the charge, a conviction may expose the accused to as much as 10 years in federal prison, financial penalties, and firearm forfeiture.
Potential Punishment for Federal Weapons Offenses in San Jose, CA
Federal firearm penalties depend on the specific statute, the type of weapon, the accused’s criminal history, whether another offense was involved, and how the United States Sentencing Guidelines apply.
| Type of Federal Firearm Case | Potential Prison Exposure |
|---|---|
| Possession by a prohibited person under 18 U.S.C. § 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 |
| Buying a firearm for another person under § 932 | 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 | Federal imprisonment for up to 15 years |
| Engaging in the business of firearm sales without federal licensing | Generally up to five years in federal prison |
| Making false statements during a firearm purchase under § 922(a)(6) | A maximum sentence of 10 years |
| Knowing possession of a gun with a removed or changed serial number | Generally up to five years in federal prison, with possible sentencing enhancements |
| Offenses involving unregistered or unlawfully transferred NFA weapons | As much as 10 years of imprisonment along with fines and forfeiture |
| Illegal machine gun possession or transfer | Frequently punishable by as much as 10 years, although a connection to drug trafficking or violence can drive the sentence much higher |
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.
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
For some defendants, the biggest battle is not whether § 922(g) applies, but whether the government can trigger the ACCA. That designation replaces the ordinary sentencing range with a mandatory minimum term of 15 years.
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.
A conviction that sounds violent in ordinary conversation may still fail to qualify under federal law. These disputes often require a close reading of statutes, old court documents, and changing ACCA precedent.
A San Jose, CA 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
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
Even when no statutory mandatory minimum applies, the United States Sentencing Guidelines may significantly increase the recommended sentencing range.
Guideline enhancements may be tied to claims 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 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.
Do You Need a Federal Gun Charges 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.
Common signs that federal authorities may be building a case 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 San Jose, CA
When federal agents and prosecutors are building a gun case, you need counsel familiar with the system from both sides. Combs Waterkotte represents San Jose, CA 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.
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.
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 San Jose, CA federal firearm defense lawyer.
