There’s no federal minimum age to buy a BB gun, so the age to buy a BB gun is set by your state, your city, and the store’s own policy. Most states draw the line at 18. A few allow purchases as young as 12 or 13, some require 16, and at least a couple push the minimum to 21. Major retailers often enforce 18 or 21 as a blanket rule even where state law would let a younger buyer through.
What Your State Requires
State law is where the real age rules live, and they vary widely. The majority of states set the minimum purchase age at 18. A handful require buyers to be only 16. A smaller number allow purchases as young as 12 or 13. At least a couple set the floor at 21. Some states have no BB gun statute at all and leave the question to local governments and retailers.
Several states skip a hard age cutoff and tie legality to parental involvement instead. In those states a minor can possess or use a BB gun with direct adult supervision or parental consent, but unsupervised possession below a certain age is illegal. Some of these laws put the criminal exposure on the supervising adult rather than the child: a parent who knowingly allows unsupervised use by a young child can face misdemeanor charges.
Because the rules can change the moment you cross a state line, checking your own state’s statute before buying is the only reliable move.
States That Treat BB Guns Like Firearms
A few states go further than a purchase age. They define “firearm” broadly enough to include some or all air-powered guns, which means BB guns in those states can be subject to the same purchase requirements, possession restrictions, and potentially background checks as conventional firearms. The broadest definitions cover any gun that fires a projectile using spring, gas, or compressed air, which sweeps in essentially every BB gun on the market.
Other states draw the line by caliber or muzzle velocity, reclassifying only air guns that exceed a specific performance threshold. A low-powered backyard BB gun might be unregulated in those states while a high-powered air rifle gets treated like a shotgun.
This classification also matters if you have a felony record. Federal law doesn’t prohibit someone with a felony conviction from possessing a BB gun, because BB guns are not firearms under the Gun Control Act.1Office of the Law Revision Counsel. 18 U.S. Code 921 – Definitions In states that classify air guns as firearms, though, a felon caught with a basic BB gun could face the same charges as if it were a handgun.
Retailer Age Policies
Even where state law would let a younger buyer walk out with a BB gun, the store may say no. Most national chains require buyers to be at least 18 for any air gun purchase as a blanket corporate policy. After the Parkland school shooting in 2018, Walmart raised its age floor to 21 for all gun and ammunition sales and stopped selling items resembling assault-style rifles, including certain air guns. Dick’s Sporting Goods made similar changes, raising its own minimum to 21 and pulling military-style weapons from its shelves.
These policies override more permissive state law. A 19-year-old who is perfectly legal under state statute can still be turned away at the register because the retailer has drawn its line at 21. Nothing prevents a store from being stricter than the law requires.
Online buying adds another layer. Most online retailers require buyers to confirm they’re at least 18 at checkout, but verification varies. Some accept a simple age checkbox. Others require an adult signature on delivery or limit shipping to addresses that match a verified ID. Certain states restrict or place conditions on air gun shipments outright, which can block online purchases even when the buyer clears the age threshold.
Local Ordinances Can Raise the Bar
Cities and counties often add restrictions on top of state law. Even in a state with no minimum age, your city might prohibit BB gun sales to anyone under 18. Common local rules include:
- Discharge bans that prohibit firing a BB gun within city limits except at a designated range.
- Carry and display restrictions covering open carry or brandishing in public.
- Local age minimums that go higher than the state’s, or impose one where the state has none.
Violating a local discharge or carry ordinance is typically a misdemeanor, with fines that vary by jurisdiction. Some cities also let police confiscate the BB gun on the spot. These local rules catch buyers off guard most often, because people check state law and stop there.
Why Federal Law Doesn’t Set an Age
The Gun Control Act of 1968 defines a “firearm” as a weapon that expels a projectile by the action of an explosive. BB guns use compressed air, springs, or CO2 instead of gunpowder, so they sit outside that definition.1Office of the Law Revision Counsel. 18 U.S. Code 921 – Definitions The federal age limits on firearm purchases — 18 for long guns, 21 for handguns — don’t apply. No federal agency sets a minimum purchase age for BB guns.
One federal rule does shape the market in the other direction. A preemption clause prevents states from banning the sale of traditional BB, paintball, or pellet guns to adults. States can restrict sales to minors, and most do, but they cannot prohibit these sales altogether.2Office of the Law Revision Counsel. 15 U.S. Code 5001 – Sale of Imitation Firearms So while your state can tell you how old you have to be, it cannot flatly bar adult purchases.
Buying for a Minor
Parents buying a BB gun for a child take on more legal exposure than most realize. Air gun injuries send roughly 20,000 people to emergency rooms each year, and about 60 percent of those patients are 17 or younger.3Healthcare Cost and Utilization Project. Statistical Brief 119 – Emergency Department Visits for Air and Paintball Gun Injuries When a minor injures someone with a BB gun, the legal consequences often land on the parents.
Nearly every state has a parental responsibility statute that holds parents financially liable for intentional or reckless property damage and injuries caused by their minor children. Liability caps vary. Courts also recognize a common-law claim for negligent supervision: if a parent knew their child had reckless tendencies and failed to restrict access to the BB gun, the parent can be personally liable for the harm that follows.
Criminal exposure is possible too. Several states make it a misdemeanor for a parent or guardian to knowingly allow unsupervised BB gun use by a child below a specified age. And if a child brings a BB gun to school, even accidentally, the consequences can be severe for both the student and the parents. Schools across the country apply zero-tolerance weapons policies that treat BB guns the same as real firearms for disciplinary purposes, which can mean suspension or expulsion regardless of whether the gun was loaded or functional.
Where a BB Gun Still Can’t Go
Even though a BB gun isn’t a firearm under the Gun Control Act, federal law separately prohibits bringing any “dangerous weapon” into a federal building. The statute defines the term broadly as any device readily capable of causing death or serious bodily injury.4Office of the Law Revision Counsel. 18 U.S. Code 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities A BB gun almost certainly qualifies. Bringing one into a post office, federal courthouse, or other federal facility can bring criminal charges even if you’re legally allowed to own and carry it everywhere else, with up to a year in prison for a first offense. State and local government buildings, courthouses, and airports generally prohibit weapons of any kind under their own policies, and the “not a firearm” argument won’t help you there either.