How long you can go to jail for a gun charge runs from five years at the low end to life in prison at the high end. Where your case lands inside that range depends on four things: the specific offense charged, whether a mandatory minimum applies, your criminal history, and whether a firearm was used during another crime. Federal penalties were raised across several statutes by the Bipartisan Safer Communities Act in 2022, so older numbers you may have seen are often low.
Federal Charges Usually Carry More Time Than State Charges
The same incident can produce charges at both levels, and the sentences can run consecutively rather than at the same time. Federal cases tend to be harsher for structural reasons. Federal judges work from the U.S. Sentencing Guidelines, there is no federal parole, and many federal gun crimes carry mandatory minimums that a judge cannot go below. State penalties vary widely, with some states treating a first concealed-carry violation as a misdemeanor and others charging it as a felony. The numbers below are federal unless noted.
Possession by a Prohibited Person
Federal law bars several categories of people from possessing any firearm or ammunition: anyone convicted of a crime punishable by more than one year in prison, fugitives, users of controlled substances, people adjudicated mentally ill or committed, people subject to certain domestic violence restraining orders, people convicted of a misdemeanor crime of domestic violence, people dishonorably discharged, people who have renounced U.S. citizenship, and certain non-citizens.1Office of the Law Revision Counsel. 18 U.S. Code 922 – Unlawful Acts
If you fall into any of those categories and possess a gun, the maximum is 15 years in federal prison. That ceiling was raised from 10 years by the 2022 Bipartisan Safer Communities Act.2Congress.gov. Text – 117th Congress (2021-2022): Bipartisan Safer Communities Act A defendant with a single old felony and nothing else on the record faces up to 15 years but can receive far less. A defendant with three or more prior convictions for violent felonies or serious drug offenses is in a different world: the Armed Career Criminal Act turns that 15-year maximum into a 15-year mandatory minimum, with no probation available.3Office of the Law Revision Counsel. 18 USC 924 – Penalties
Other Common Federal Gun Charges
Straw Purchasing and Trafficking
Buying a gun on behalf of someone who cannot legally purchase one is now a dedicated federal crime under 18 U.S.C. § 932, carrying up to 15 years. If the buyer knows or has reason to believe the gun will be used in a felony, terrorism, or drug trafficking, the maximum rises to 25 years.4Office of the Law Revision Counsel. 18 USC 932 – Straw Purchasing of Firearms A separate trafficking statute, 18 U.S.C. § 933, punishes shipping or transferring a firearm to someone whose possession would be a felony, also with up to 15 years.5Office of the Law Revision Counsel. 18 USC 933 – Trafficking in Firearms
Dealing Without a License
Willfully engaging in the business of dealing firearms without a Federal Firearms License carries up to five years.3Office of the Law Revision Counsel. 18 USC 924 – Penalties Occasional private sales from a personal collection are not dealing; regularly buying and reselling for profit is, whether online, at shows, or in person.
Unregistered NFA Weapons
Machine guns, short-barreled rifles and shotguns, silencers, and destructive devices must be registered and transferred through the ATF. Possessing an unregistered NFA item is a federal felony punishable by up to 10 years in prison and a fine of up to $10,000.6Office of the Law Revision Counsel. 26 USC 5871 – Penalties
Guns in a School Zone
Knowingly possessing a firearm within 1,000 feet of a school carries up to five years in federal prison, and that sentence must run consecutively to any other term.3Office of the Law Revision Counsel. 18 USC 924 – Penalties Exceptions apply for people licensed by the state where the school sits, and for firearms that are unloaded and locked in a container.
Using a Gun During Another Crime Is Where Sentences Explode
The harshest federal firearms penalties apply when someone uses, carries, or possesses a gun during a crime of violence or a drug trafficking offense. Under 18 U.S.C. § 924(c), these minimums stack on top of whatever the underlying crime carries:
- Possessing a firearm during the offense: 5 years minimum
- Brandishing it: 7 years minimum
- Firing it: 10 years minimum
Those sentences are consecutive. Someone convicted of armed robbery who brandished a pistol serves the robbery sentence plus at least seven years for the gun.3Office of the Law Revision Counsel. 18 USC 924 – Penalties The weapon type pushes the floor higher:
- Short-barreled rifle, short-barreled shotgun, or semiautomatic assault weapon: 10 years minimum
- Machine gun, destructive device, or weapon with a silencer: 30 years minimum
A second or subsequent 924(c) conviction carries a 25-year mandatory minimum. If the weapon in the second offense is a machine gun, destructive device, or silencer-equipped firearm, the sentence is life.3Office of the Law Revision Counsel. 18 USC 924 – Penalties Two separate drug deals with a firearm each time produce a combined mandatory minimum of 30 years for the gun counts alone, before the drug sentences are even calculated.
What Pushes Your Sentence Higher
Criminal history drives the biggest variation. Federal sentencing guidelines assign points for prior convictions, and the recommended range climbs with the score. The Armed Career Criminal Act converts the 15-year possession maximum into a 15-year floor for defendants with three qualifying priors.3Office of the Law Revision Counsel. 18 USC 924 – Penalties
Other aggravators matter too. Possession in a school zone, federal building, or courthouse triggers specific statutory add-ons. Multiple firearms suggest trafficking rather than personal possession and raise the offense level. Obliterated serial numbers and ammunition matching a prohibited weapon type add further increments.
How the case resolves changes the math. The overwhelming majority of federal firearms cases end in plea bargains, and defendants who go to trial and lose almost always receive longer sentences, partly because a guilty plea earns a reduction under the guidelines for acceptance of responsibility.
Mandatory Minimums and the Narrow Safety Valve
A mandatory minimum removes a judge’s ability to go below a set term, regardless of circumstances. The 924(c) stacking minimums and the Armed Career Criminal Act’s 15-year floor both operate this way.
Federal law includes a narrow escape hatch called the safety valve, at 18 U.S.C. § 3553(f). To qualify, a defendant must have a limited criminal history, must not have used violence or possessed a firearm in connection with the offense, must not have caused death or serious injury, must not have been a leader or organizer, and must cooperate fully with the government by sentencing. Possessing a firearm in connection with the offense disqualifies you, and the provision only applies to certain drug crimes rather than to standalone firearms offenses. For gun defendants, it almost never helps.
Supervised Release After Prison
Federal prison time is not the end of the sentence. Every federal firearms conviction includes supervised release that begins the day you leave custody. You report to a probation officer, follow strict conditions, and remain barred from possessing any firearm or ammunition. For Class A and B felony gun charges, supervised release can last up to five years; for lower-level felonies, up to three.7Office of the Law Revision Counsel. 18 USC 3583 – Inclusion of a Term of Supervised Release After Imprisonment
Possessing a firearm while on supervised release triggers mandatory revocation, meaning you go back to prison.7Office of the Law Revision Counsel. 18 USC 3583 – Inclusion of a Term of Supervised Release After Imprisonment Courts also have discretion to revoke for failed drug tests or missed appointments.
Time Behind Bars Before Conviction
Federal firearms defendants frequently sit in jail while their case moves. Federal data shows only about 29 percent of defendants charged with weapons offenses were released before trial. Even defendants with no prior felony arrests saw a pretrial release rate of roughly 49 percent, while those with five or more prior arrests were released about 17 percent of the time.8United States Courts. Examining Federal Pretrial Release Trends over the Last Decade Federal cases often take many months to resolve, so detention can mean a long stretch inside before any conviction.
Defenses That Can Reduce or End the Case
Gun charges are not automatic convictions. The strongest defense in many cases is a Fourth Amendment challenge. If police found the firearm during an illegal search or seizure, a motion to suppress can exclude it from trial. When the gun is the government’s whole case, suppression often ends the prosecution. This comes up constantly in traffic stops with no probable cause and in home searches without a valid warrant.
Constructive possession is another regular battleground. When a firearm turns up in a shared space like a car, apartment, or storage unit, the government must prove you knew it was there and had the ability to control it. A gun in a roommate’s bedroom or a friend’s glove compartment is much harder to pin on you than one in your nightstand.
Other defenses include challenging whether a prior conviction actually qualifies as a felony punishable by more than one year, entrapment, and lack of knowledge that you possessed the firearm at all. Each turns on specific facts and the evidence the government can actually produce.
A final boundary worth knowing: the federal government generally has five years from the date of the offense to bring firearms charges, so a case left unindicted past that window is barred.9Office of the Law Revision Counsel. 18 U.S. Code 3282 – Offenses Not Capital For ongoing conduct like a trafficking operation, the clock does not start until the activity stops.