Federal gun cases are rarely as simple as “possession of a firearm.” The statutes are layered, the definitions are technical, and sentencing can change dramatically based on facts that sound minor in conversation but carry significant legal weight in court.
People come in thinking the charge is straightforward. In federal court, that assumption is expensive. The government’s case can be built on prohibited status, on how possession is characterized, on what else was happening in the vicinity of the firearm, and on prior convictions that trigger mandatory minimum exposure. Understanding those layers is not optional. It is the starting point for any serious federal firearms defense.
This post covers the most commonly charged federal firearms offenses, what the government must prove, and where the sentencing exposure actually comes from. It applies whether you are a business owner or professional dealing with a licensing or status issue, a person with a prior conviction who assumed old cases no longer mattered, or someone whose firearms charge is now being used as leverage in a larger federal investigation.
Before You Speak to Federal Agents
Firearms cases often turn on what you knew, what you possessed, where the firearm was found, and what else was happening at the time. Your statements can supply intent, knowledge, possession facts, and connections to other offenses that the government cannot cleanly establish from physical evidence alone. If you want to protect yourself, start by not creating evidence.
Do not speak to federal agents without retaining counsel first. If agents have contacted you, if a search warrant was executed, or if you believe you are under federal scrutiny, call for a consultation before you answer any questions.
The Core Prohibited Possession Statute: 18 U.S.C. 922(g)
The most commonly charged federal firearms offense is possession by a prohibited person under 18 U.S.C. 922(g). The statute prohibits certain categories of individuals from possessing, shipping, or transporting any firearm or ammunition in or affecting interstate or foreign commerce, or from receiving a firearm or ammunition that has traveled in such commerce.
The prohibited categories are broader than most people expect. They include people with felony-level convictions, fugitives from justice, unlawful users of controlled substances, people subject to certain mental health adjudications or involuntary commitments, certain noncitizens present unlawfully in the United States, people dishonorably discharged from the military, people who have renounced United States citizenship, people subject to certain domestic restraining orders, and people convicted of misdemeanor crimes of domestic violence.
People get blindsided in several predictable ways. They assume a prior conviction from years ago is irrelevant. They assume a misdemeanor cannot trigger a federal firearms prohibition. They treat a protective order as a family court matter rather than a federal felony trigger. In federal court, those assumptions can be devastating.
What the Government Must Prove After Rehaif
The Supreme Court’s decision in Rehaif v. United States clarified what knowledge the government must establish in a 922(g) prosecution. The government must prove four things: that the defendant was a prohibited person, that the defendant knew they were a prohibited person, that the defendant knowingly possessed a firearm or ammunition, and that the firearm or ammunition was in or affecting interstate commerce.
The knowledge of status requirement matters, but it is often misunderstood. Courts have generally interpreted Rehaif as requiring knowledge of the specific status facts, such as knowing you were convicted of a felony or knowing you were in the country unlawfully, not knowledge that your status made gun possession illegal. The defense is not “I did not know it was a crime.” The defense is about whether the government can prove you knew the underlying status facts, and whether it can prove possession in the manner it claims.
Constructive Possession Is Where the Fight Often Is
The government does not need to prove the firearm was physically in your hand. Constructive possession is sufficient: having the power and intent to exercise control over the firearm even without physical contact. That becomes a factual contest about where the firearm was found, who had access to the location, what nearby items suggest about ownership and use, and what messages or statements connect the defendant to the weapon. If you talk casually to agents about whose firearm it was or where it came from before understanding what evidence the government already has, you risk supplying the element the government most needs.
False Statements and Straw Purchases
A separate category of federal firearms offense involves purchase and transfer misconduct. Under 18 U.S.C. 922(a)(6), it is a felony to knowingly make a false statement in connection with acquiring a firearm from a federally licensed dealer that is intended or likely to deceive the dealer about a fact material to the lawfulness of the sale. A related statute addresses false statements in dealer records more broadly.
These charges most commonly arise from Form 4473, the firearms transaction record required for transfers through licensed dealers. The Supreme Court has held that the true identity of the actual purchaser is material under this statute, even if the real buyer would have been legally eligible to make the purchase themselves. The “but he could have bought it himself” argument does not defeat the false statement charge.
Federal law also addresses straw purchasing and firearms trafficking directly, with penalties that reflect the seriousness with which prosecutors approach these cases. If agents are asking questions about who paid, who selected the firearm, who kept it, or why it was purchased, do not answer those questions without counsel.
Serial Numbers and Guideline Enhancements
Under the federal sentencing guidelines, certain enhancements apply based on characteristics of the firearm itself, regardless of whether the defendant knew about those characteristics. Enhancements exist for stolen firearms and for firearms with altered or obliterated serial numbers, and the guideline commentary makes clear those enhancements can apply even without proof that the defendant knew the firearm was stolen or had a compromised serial number. A case that begins as a straightforward possession charge can carry a significantly higher sentencing range based on how the firearm itself is described.
How Sentencing Actually Works: Guideline 2K2.1
Most federal firearms cases are sentenced under Guideline 2K2.1, the primary firearms guideline. It contains multiple base offense levels that depend on the defendant’s prohibited status, the type of firearm involved, and the presence of prior convictions for crimes of violence or controlled substance offenses.
When the government attempts to classify a prior conviction as a crime of violence or a drug offense for guideline purposes, the defense often fights that classification through what courts call the categorical or modified categorical approach, which requires comparing the elements of the prior offense to the guideline definition rather than looking at the underlying facts of what happened. These fights have real sentencing consequences and require analysis that must begin long before the sentencing hearing.
The Two Biggest Sentencing Escalators: 924(c) and ACCA
Two statutes transform the sentencing landscape in federal firearms cases in ways that demand immediate attention.
The first is 18 U.S.C. 924(c), which provides mandatory prison terms for using or carrying a firearm during and in relation to a crime of violence or drug trafficking crime, or for possessing a firearm in furtherance of such an offense. The mandatory minimums under 924(c) are consecutive to any other sentence, meaning they are added on top rather than served concurrently. They increase based on how the firearm was used and what type of firearm was involved, and they can range from five years to life. A 924(c) count fundamentally changes the sentencing math and forces different strategic decisions than a standalone possession case.
The second is the Armed Career Criminal Act, 18 U.S.C. 924(e), which imposes a mandatory minimum sentence for a defendant convicted under 922(g) who has three prior convictions, committed on different occasions, for serious drug offenses, violent felonies, or a combination of both. ACCA cases are not routine. When the statute applies, it removes virtually all sentencing flexibility and makes the case one where early, aggressive defense work on the prior conviction question is essential.
If either 924(c) or ACCA is even a possibility in a case, it is not a routine firearms matter. It is a case where sentencing structure forces hard decisions early, and where statements to agents about the firearm’s connection to other conduct or about the nature of prior convictions can determine whether those escalators apply.
The Bottom Line on Federal Firearms Cases
Federal firearms charges are not one-size-fits-all. The government can build a possession case on prohibited status, constructive possession theory, or knowledge of status facts. It can charge false statement and straw purchase theories based on paperwork and identity. It can dramatically increase sentencing exposure through guideline enhancements and mandatory minimum statutes that stack quickly. And it uses firearms as leverage in broader investigations by threatening the argument that the gun was connected to another offense.
If federal agents have contacted you, if a search warrant was executed, or if you are concerned about potential exposure in a firearms matter, the safest next step is to speak with a lawyer before you speak with the government. Call Glozman Law for a consultation.
Disclaimer: This article is for general informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship. Every situation is different, and federal firearms cases are highly fact specific, especially when sentencing enhancements or mandatory minimum statutes may apply. If federal agents have contacted you or you are concerned about potential exposure, you should speak with a qualified attorney about your specific circumstances before making any decisions or speaking with law enforcement.