Buying a gun in America isn’t as simple as walking into a store and walking out with a firearm. There’s paperwork. Background checks. Federal laws, state laws, and sometimes even local ordinances all have to line up. And if you mess up any part of it, you’re not just dealing with an inconvenience; you could face federal charges.
The process varies depending on where you live, what type of firearm you’re buying, and whether you’re buying from a licensed dealer or a private seller. Some states make it straightforward. Others add layers of permits, waiting periods, and training requirements. The Second Amendment gives you the right to own firearms, but every state interprets that right differently.
Important Disclaimers:
This guide provides general information about federal firearms purchase laws and common state variations. It is not legal advice. Firearm laws change frequently and vary significantly by jurisdiction. Always verify current federal, state, and local laws before purchasing or possessing firearms.
If you have specific questions about your legal eligibility, past convictions, restraining orders, or other potential prohibitions, consult a qualified attorney before attempting to purchase firearms. The consequences of violating federal or state firearms laws can include federal felony convictions and lengthy prison sentences.
Federal Firearm Purchase Requirements: What Applies Everywhere
Before we get into state differences, let’s talk about what federal law requires, no matter where you are. Many of these rules come from the Gun Control Act of 1968 and apply in all 50 states.
Age Requirements
Federal law sets minimum ages based on firearm type and who’s selling. If you’re buying from a Federal Firearms License (FFL) holder (that’s a gun dealer, gun store, or pawn shop) you must be 21 to buy a handgun. For rifles and shotguns from an FFL, the minimum is 18.
Private sales work differently under federal law. Federal law allows 18-year-olds to acquire handguns from private sellers in their own state. However, many states override this with their own age restrictions that set the minimum age for any firearm purchase at 21. Some states, like Florida, also raise the FFL purchase age for long guns to 21. Always verify your state’s specific age requirements—they often exceed the federal minimums.
Additional information: BATFE Age Limits
Who Cannot Buy Firearms: Federal Prohibitions
Federal law bars specific categories of people from purchasing or possessing firearms. These prohibitions apply nationwide. If you fall into any of these categories, you cannot legally buy a gun from anyone, dealer or private seller:
Convicted Felons: Anyone convicted in any court of a crime punishable by more than one year in prison, even if they didn’t serve that time. Some state misdemeanors count if they carry potential sentences of more than two years.
Fugitives from Justice: If there’s an active warrant for your arrest, you’re prohibited.
Unlawful Users of Controlled Substances: This includes marijuana. Federal law still classifies marijuana as illegal even in states that have legalized it. ATF revised Form 4473 in 2016 to add an explicit warning stating that marijuana use remains illegal under federal law regardless of state legalization. If you use marijuana, even medicinally, federal law prohibits you from purchasing firearms.
*Special Note: At the time of this writing, marijuana is a Schedule I drug. That means all marijuana users are prohibited from purchasing firearms. However, President Donald Trump directed the Drug Enforcement Agency (DEA) to expedite rulemaking to reschedule marijuana as a Schedule III drug. It is possible that when this takes place, medically prescribed marijuana users will be legally able to purchase firearms. This is not certain, and you should seek an attorney’s counsel prior to making a purchase.
Mental Illness: Anyone adjudicated as mentally defective or committed to a mental institution—this is a specific legal determination, not just seeing a therapist. It requires a formal court or legal authority ruling.
Illegal Aliens: Any citizen of another country in the United States illegally is prohibited from possessing firearms. An alien legally in the U.S. is not prohibited from purchasing firearms unless the alien is admitted into the U.S. under a nonimmigrant visa and does not meet one of the exceptions as provided in 18 U.S.C. 922(y)(2), such as possession of a valid hunting license or permit.
Dishonorably Discharged: This is specifically dishonorable discharge from military service, not other forms of separation.
Anyone Subject to Certain Domestic Violence Restraining Orders: The order must meet specific federal criteria related to intimate partner relationships.
Misdemeanor Domestic Violence Conviction: This is a lifetime ban under federal law.
Anyone Who Has Renounced their U.S. Citizenship
These aren’t negotiable. If you’re unsure whether a past conviction or legal issue disqualifies you, talk to a lawyer before attempting to purchase. Lying on the federal form to buy a gun is itself a federal felony punishable by up to 10 years in prison.
How NICS Works
Every firearm purchased from a licensed dealer goes through NICS: the National Instant Criminal Background Check System run by the FBI. It’s been operating since 1998 under the Brady Handgun Violence Prevention Act. More than 500 million background checks have been conducted through this system. Over 26 million checks were performed in 2025 alone.
What NICS Checks: Three Database Searches
When a dealer initiates a background check, NICS searches three federal databases simultaneously. The National Crime Information Center contains active warrants and arrest records. The Interstate Identification Index holds criminal history records from all states. The NICS Index contains records of people specifically prohibited from firearm possession: mental health adjudications, restraining orders, immigration status, and dishonorable discharges.
The system matches your name, date of birth, Social Security number, and other identifying information against these databases. Most checks come back in minutes. Some take longer if there’s a name match that requires additional verification.
Three Possible Responses: Proceed, Denied, or Delayed
The FBI gives dealers one of three responses.
‘Proceed’ means you pass—no disqualifying records found. The dealer can transfer the firearm to you immediately.
‘Denied’ means the FBI found a prohibiting record. You cannot legally purchase that firearm. If you believe the denial is wrong, you can appeal through the FBI’s NICS Appeals process.
‘Delayed’ means the FBI needs more time to research your background. Maybe you share a name with someone who is prohibited. Maybe records are incomplete and need verification.
The FBI has three business days to make a final determination. If they don’t respond within that time, federal law allows the dealer to complete the transfer at their discretion. This is called a ‘default proceed.’ Some states prohibit this and require an affirmative proceed response before any transfer.
In 2019, over 261,000 federal background checks took longer than three business days. The FBI stops researching checks after 88 days if they haven’t made a determination. This happened more than 207,000 times that year. The system isn’t perfect: it depends on states and agencies uploading complete, accurate records.
State Point-of-Contact vs. FBI: Who Handles Your Check?
Not every state uses the FBI directly for NICS checks. Approximately 15 states run their own background check systems as ‘ point-of-contact’ states. In these states, dealers contact state law enforcement instead of the FBI, and the state handles the entire background check process using both federal databases and state-specific records.
Seven states are ‘partial point of contact’ states: they handle handgun checks themselves, but the FBI processes long gun checks. The remaining states, including large ones like Texas and Florida, are ‘non-point of contact’ states where dealers contact the FBI directly for all firearm transactions.
ATF Form 4473: The Federal Firearms Transaction Record
Every time you buy a gun from a licensed dealer, you fill out ATF Form 4473. It’s a federal document that records the transaction and certifies your legal eligibility.
The dealer keeps this form indefinitely. Since August 2022, dealers have been required to retain all Forms 4473 permanently, rather than for 20 years as previously required. The forms never go to a government database for approved purchases, but ATF can inspect them during compliance checks or criminal investigations.
Ever see the movie Red Dawn? When Colonel Ernesto Bella instructs the Soviet officer to go to the sporting goods store and find the Form 4473 to identify who owns firearms, he is referring to these background check documents.
What Form 4473 Asks: Identity and Eligibility
In recent years, there have been multiple changes to the 4473. Generally, there are two sections: your identification and the description of the firearm(s) being purchased.
You provide your full legal name, residence address, date and place of birth, Social Security number, state of residence, ethnicity and race. These demographic questions have been required since 1968 to aid in identification and firearm tracing.
Then come the critical eligibility questions. Questions include:
- If you’re the actual buyer or buying for someone else.
- Questions about every federal prohibition category.
You answer yes or no to each question. The form explicitly warns that providing false answers is a federal crime punishable by up to 10 years in prison. The dealer reviews your answers, verifies your identification, then initiates the NICS check using the information you provided.
Identification Requirements: What You Need to Bring
You need a government-issued photo ID that shows your name, address, and date of birth. Driver’s licenses work. State-issued ID cards work. Passports work, but you’ll need secondary documentation showing your current address since passports don’t include addresses.
The ID must be current and valid. Expired licenses don’t count. The address on your ID should match your actual residence address.
State-Specific Firearm Purchase Laws: Critical Variations
Here’s where it gets complicated. Federal law sets the baseline. States can add their own requirements on top, and many do. What’s perfectly legal in one state can land you in serious trouble across the state line.
Permit-to-Purchase States: Additional Licensing Requirements
Several states require you to get a permit before you can purchase a firearm at all. These permit-to-purchase laws add a whole extra layer. You apply to local law enforcement, undergo fingerprinting, often complete safety training, and wait for approval. Only after you have this permit can you proceed with the normal dealer purchase process.
New York City is its own beast. You need a license even to possess a rifle or shotgun in city limits, separate from New York State law. The application process is extensive and expensive.
Waiting Periods: Mandatory Delays Before Possession
Some states impose mandatory waiting periods between purchase and possession. California has a 10-day waiting period for all firearms. Florida has a three-day waiting period for handguns unless you have a concealed carry permit. Hawaii’s permit system creates an effective 14-day minimum waiting period before you can even complete the purchase. The theory is that waiting periods prevent impulsive purchases during emotional crises and allow thorough background checks.
These waiting periods apply even if your NICS check comes back immediately approved. You still wait. The dealer holds the firearm. You come back after the waiting period expires to pick it up.
Universal Background Check States: Private Sales Included
Federal law requires background checks only for sales by licensed dealers. Private sales between two individuals in the same state don’t require federal background checks unless state law says otherwise. Approximately a dozen states have universal background check laws that require background checks for private sales, too.
In these states, even if you’re buying from your neighbor or a friend, you must go through a licensed dealer who processes the transfer, runs the background check, and completes Form 4473. There are sometimes exceptions for family transfers.
States without universal background check laws allow private sales without dealer involvement or background checks, as long as the buyer and seller are residents of the same state and the seller has no reason to believe the buyer is prohibited.
Step-by-Step: How to Buy a Gun from a Licensed Dealer
Let’s walk through the actual process from start to finish. This assumes you’re buying from a licensed dealer and you’re in a state without additional permit requirements.
Step One: Choose Your Firearm and Verify Eligibility
Browse the dealer’s inventory. Handle firearms if the dealer allows. Ask questions about different models, calibers, and features. Most reputable dealers will help first-time buyers understand their options.
The dealer will verify that you meet basic age requirements. They’ll ask about your state residency. You can only purchase handguns in your state of residence. Long guns can be purchased in any state if they’re legal in both the state of purchase and your home state, but you still have to comply with your home state’s laws.
Step Two: Complete ATF Form 4473
The dealer provides Form 4473. Read the instructions carefully. Fill out the sections completely and accurately. Print clearly. Double-check Social Security number, address, and date of birth. Answer every question honestly. If you’re unsure about any question, ask the dealer for clarification before answering.
Pay special attention to the eligibility questions. If you answer yes to any disqualifying question, the dealer cannot proceed with the sale. Period. If you’re uncertain whether a past conviction or legal issue disqualifies you, do not guess on the form. False statements are federal crimes.
Sign and date the certification. This signature certifies that your answers are true and complete. The dealer reviews the form, verifies it’s complete, and checks your identification against the information provided.
Step Three: The Background Check Process
The dealer contacts NICS—either by phone or through the online E-Check system. They transmit your information from Form 4473 to the FBI (or state point of contact). You wait. Most background checks are completed in minutes. The dealer receives a transaction number and one of three responses.
If the response is proceed, you’re approved. If it’s denied, the dealer cannot transfer the firearm to you. The FBI will send you information about why you were denied and how to appeal if you believe it’s wrong. If it’s delayed, you wait. The dealer will tell you to come back later or they’ll call you when they get a final response.
The NICS check is valid for 30 days. If you don’t complete the purchase within 30 days, the dealer must run a new background check before transferring the firearm.
Step Four: Payment and Waiting Periods
Once approved, you pay for the firearm. The dealer completes their portion of Form 4473, recording the NICS transaction number and approval. In states without waiting periods, you can take possession immediately. The dealer transfers the firearm to you at the counter.
In states with mandatory waiting periods, the dealer keeps the firearm. You come back after the waiting period expires—three days, ten days, fourteen days, depending on your state. Bring your receipt and ID. The dealer verifies your identity and transfers the firearm to you.
Step Five: Taking Possession and Leaving
The firearm is now legally yours. Most dealers provide basic safety information. Some offer quick demonstrations of operation. Take your receipt, your firearm, and any documentation that came with it. Understand how to operate the safety, load, and unload the firearm safely.
Transport the firearm legally. Most states allow transporting a firearm you just purchased directly home. It should be unloaded. Many states require it be in a case or locked container, separate from ammunition. Check your state and local laws about firearm transportation and storage requirements.
Buying Firearms Online: How Internet Purchases Actually Work
You can buy firearms online. But you can’t have them shipped to your house like Amazon packages. Federal law prohibits interstate firearm transfers except through licensed dealers.
The Online Purchase Process: From Order to Transfer
Sites like GunBroker, Guns.com, and others let you purchase firearms online. You select the firearm, complete the purchase, and pay. But instead of shipping to you, the seller ships to a Federal Firearms License holder in your area – usually a local gun shop that offers transfer services.
Before you even order, you need to find an FFL willing to receive the transfer. Most gun shops offer this service. They charge transfer fees, typically $25 to $50.
The seller ships the firearm to the FFL. When it arrives, the FFL contacts you. You go to their store, complete Form 4473, and undergo the background check exactly as if you were buying from them directly. You pay the transfer fee, pass the background check, and take possession. All the same rules apply: state waiting periods, permits if required, and age restrictions.
Private Sales: Individual-to-Individual Transfers
Federal law doesn’t prohibit private sales between individuals who live in the same state. But state laws vary dramatically on whether and how you can do this.
States Allowing Private Sales Without Dealer Involvement
In states without universal background check requirements, you can buy from another private individual without involving a dealer or running a background check. Both buyer and seller must reside in the same state. The buyer must be old enough under state law. The buyer cannot be federally prohibited.
Sellers aren’t required to verify that the buyer isn’t prohibited, but they cannot knowingly sell to someone who is. Some complete a bill of sale to record the transaction.
No Form 4473 is required. No NICS check is required. No paperwork is legally required at all.
Universal Background Check States: Private Sales Through Dealers
In universal background check states, private sales must go through licensed dealers. You and the seller meet at a gun shop. The dealer facilitates the transfer. The buyer completes Form 4473. The dealer runs the background check. Both parties typically pay fees. Sometimes the seller pays a consignment or listing fee, sometimes the buyer pays a transfer fee, sometimes both pay.
This adds time and cost but ensures the buyer is legally eligible. Some states exempt immediate family transfers, such as parent to child, grandparent to grandchild. Definitions of ‘immediate family’ vary by state.
Interstate Private Sales: Always Requires FFL
Federal law strictly prohibits private interstate transfers. You cannot buy a firearm from a private individual in another state and bring it home yourself. Interstate transfers of firearms must go through FFLs.
If you want to buy from an out-of-state private seller, the seller must ship the firearm to an FFL in your state, just like an online purchase.
Common Mistakes and Legal Pitfalls to Avoid
The firearm purchase process has multiple points where mistakes can result in denied purchases or even criminal charges. Here’s what to watch out for.
Straw Purchases: Buying for Someone Else
The most serious mistake people make is straw purchasing. This is when you buy a firearm intending to transfer it to someone else who couldn’t pass a background check themselves.
They ask you to buy a gun for them. You think, “I can pass the background check, no problem.”
This is a federal felony. Both the straw purchaser and the ultimate recipient can face charges. When you sign Form 4473 certifying you’re the actual buyer, you’re making that certification under penalty of perjury.
Buying as a gift is legal, as long as the recipient can legally own firearms and you truly are the purchaser making the decision to gift it. The difference is intent. If someone gives you money to buy them a specific gun, that’s a straw purchase.
Lying on Form 4473: False Statements
Lying on any question is a federal crime. People most commonly lie about drug use, past convictions, or mental health adjudications. They think old charges that were dismissed or expunged don’t count.
If you’re unsure whether something disqualifies you, don’t guess on the form. Talk to a lawyer first.
Additional Resources and Information
Official Federal Resources:
Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF): www.atf.gov
FBI National Instant Criminal Background Check System (NICS): www.fbi.gov/nics
ATF State Laws and Published Ordinances: https://www.atf.gov/firearms/tools-and-services-firearms-industry/state-laws-and-published-ordinances-firearms
ATF Form 4473: www.atf.gov/firearms/atf-form-4473