Buying & selling guide
Private Firearm Sales & FFL Transfers: How It Works (2026)
Buying or selling a firearm privately is legal in most situations — but the rules differ depending on where the parties live and how the firearm changes hands. This guide breaks down the federal basics, the difference between in-state and interstate sales, how the background check works at a licensed dealer, and how to avoid the mistakes that turn a routine sale into a federal crime.
The federal basics
Federal firearms law is administered by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). A few principles apply no matter which state you're in:
- A private individual who is not 'engaged in the business' of dealing firearms may generally sell a personally owned firearm — but anyone who buys and sells firearms to predominantly earn a profit must hold a Federal Firearms License (FFL). Under the 2024 ATF 'engaged in the business' rule this can apply even to a small number of sales, so confirm the current standard before ever selling for profit.
- You may never sell or transfer a firearm to someone you know, or have reasonable cause to believe, is prohibited from possessing one.
- Buying a firearm for someone else who can't or won't buy it themselves — a straw purchase — is a federal felony.
- Any sale that crosses state lines must go through an FFL in the buyer's state of residence.
In-state vs. interstate sales
Same-state (in-state) sale
When both the buyer and seller are residents of the same state, federal law may allow a direct private transfer — but many states now require even in-state private sales to run through a licensed dealer for a background check. Waiting periods, permit-to-purchase rules, and model or magazine restrictions can also apply.
Across state lines (interstate)
If the buyer and seller live in different states, the firearm must be shipped or delivered to an FFL in the buyer's state, who runs the background check and completes the transfer. A private seller cannot legally hand a firearm directly to an out-of-state resident.
Because the rules pivot on residency, always check the law on both ends of the deal before agreeing to anything.
How the background check works
When a transfer goes through a dealer, the buyer completes ATF Form 4473 and the dealer runs a NICS (National Instant Criminal Background Check System) check. The dealer will not release the firearm if the check returns a denial. In states with a waiting period, the clock typically starts when the check is initiated, not when it clears. Private sellers can't run NICS themselves, which is one practical reason routing a sale through an FFL protects both parties.
Completing a private sale safely
Confirm both parties are eligible
Make sure you can legally sell and the buyer can legally receive. Never transfer to anyone you know — or have reason to believe — is prohibited from possessing firearms.
Check the state rules on both ends
Some states require even private sales to run through a dealer, impose waiting periods, or restrict certain models and magazines. Interstate sales always require an FFL in the buyer's state.
Route the firearm to a licensed dealer when required
For every interstate transfer — and for private sales in universal-background-check states — the firearm goes to an FFL in the buyer's state, who runs the background check.
Background check at the FFL
The buyer completes ATF Form 4473 and a NICS background check. The dealer will not release the firearm if the check is denied, and any state waiting period starts here.
Complete the transfer and keep records
Once the check clears (and any waiting period passes), the dealer releases the firearm. Keep your own record of the sale — a bill of sale documenting the date and parties is good practice.
What never to do
- Don't buy a firearm for someone else who can't pass a check — a straw purchase is a federal felony even if you're legally allowed to own the gun.
- Don't transfer to anyone you know, or suspect, is a prohibited person.
- Don't ship or hand a firearm directly to an out-of-state resident — it must go through an FFL in their state.
- Don't assume your state mirrors your buyer's. Restrictions on models, magazines, and permits vary widely.
How Rangium fits in
Rangium is a neutral listings venue — a place to discover firearms and connect with buyers and sellers. It surfaces per-state warnings right on each listing so you can see relevant background-check, magazine, and model rules before you commit. But Rangium never handles the transfer itself: it does not take payment, ship firearms, or complete the sale. Every transaction happens in person or through a licensed dealer, following all federal, state, and local law. The marketplace rules spell out exactly what is and isn't allowed. Vanta, Rangium's built-in AI companion, can help you think through listing details and compliance questions — but Vanta is informational and not a substitute for legal advice.
Frequently asked
Can I legally sell a gun to another private person?+
Under federal law, a private individual who is not 'engaged in the business' of dealing firearms may generally sell a personally owned firearm to a resident of their own state, as long as they have no reason to believe the buyer is prohibited from possessing firearms. State and local law can add requirements on top of this — several states require even private sales to go through a licensed dealer. Always confirm your own state's rules first.
Do I have to use an FFL for a private sale?+
Not always for an in-state sale between two residents — but you must use a Federal Firearms Licensee (FFL) for any interstate transfer, and in states with 'universal background check' laws, private in-state sales must also go through an FFL. When in doubt, routing the transfer through a dealer is the safest path and provides a documented background check.
What is a straw purchase?+
A straw purchase is buying a firearm on behalf of someone else who could not (or did not want to) buy it themselves — for example, passing the background check for a prohibited person. It is a federal felony, even if the actual end user is legally allowed to own a gun. Buy only for yourself or as a bona fide gift you genuinely intend to give.
How do I know if a buyer is a 'prohibited person'?+
Federal law bars several categories of people from possessing firearms, including certain felons, people convicted of domestic-violence misdemeanors, those subject to qualifying restraining orders, and others. A private seller cannot run a background check directly, which is one reason transferring through an FFL — where a NICS check is run — adds protection for both parties.
Does Rangium process the payment or ship the firearm?+
No. Rangium is a neutral listings venue. It never takes payment, never ships firearms, and never handles the transfer itself. The actual sale is completed in person or through a licensed dealer, following all federal, state, and local law.
How much does an FFL transfer cost?+
Transfer fees vary by dealer but are commonly around $25 to $50 per firearm. The receiving FFL handles the ATF Form 4473 and the NICS background check before releasing the firearm to the buyer.
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Start a free 14-day Pro trial to list firearms with per-state warnings built in, organize your inventory, and ask Vanta about compliance. Rangium stays out of the transfer — you handle the sale through a licensed dealer.