Gun laws are the federal and state rules that govern how you buy, store, carry and use a firearm. Knowing them lets you own a gun in your house with confidence. We offer general information in plain language, not legal advice. Your state statute and a licensed attorney give you the answer for your own situation.
Maybe you just bought your first handgun for home defense. Maybe you have owned a shotgun for years and are moving to a new state. Most owners learn the rules piece by piece, often after a question comes up. Legal knowledge is part of preparedness, the same as a stocked pantry. Seeing the whole picture at once lets you answer the core questions about buying, storing, carrying and defending before you need the answers.
Start by finding your state's firearm statute on the state legislature's website and bookmarking it. It is free to read, and every rule that follows comes back to that document.
Federal Gun Laws and State Gun Laws
Know how the layers stack and you can tell which rules apply to you anywhere you stand. Federal gun laws set a floor that covers every state. Each state then builds its own rules on top, and those layers shape everything that follows on buying, carrying and self-defense.
The Federal Floor
Four federal acts do most of the work. The National Firearms Act of 1934 regulates machine guns, short-barreled rifles and shotguns, suppressors and destructive devices. Today you can own many of these where your state allows it, after an ATF application, fingerprints, registration and a tax stamp.
The Gun Control Act of 1968 created the licensed dealer system and the list of people barred from owning firearms. It is the reason you buy from a Federal Firearms Licensee, or FFL. It is also the reason a handgun bought out of state ships to a dealer in your home state.
The Firearm Owners Protection Act of 1986 lets you drive through a stricter state with a firearm that is legal at both ends of your trip. Keep it unloaded and locked away from the passenger area to stay inside that protection. The same act bars a federal registry of gun owners and closed the machine gun registry to new civilian guns.
The Brady Handgun Violence Prevention Act of 1993 created background checks for dealer sales. Today a dealer runs your information through NICS, the National Instant Criminal Background Check System, before you walk out with a firearm.
State Rules on Top
States add their own rules on top of the federal floor. These can include permits to purchase, waiting periods, carry rules, storage duties, magazine limits and lists of restricted rifles. A state can go further than federal law, and federal law still applies in every state.
Most states also limit what cities and counties can add, a rule called preemption. If your state has strong preemption, the state code is your full rulebook. If your state lets local governments add ordinances, read your city or county code as well. Either way, a written code works in your favor. It turns a vague worry into a checklist you can work through in one evening.
Location Decides the Answer
Ask a lawyer a question about gun laws and the first reply is usually a question: where do you live? A rifle that is legal to buy in one state can be restricted across the line. If you are moving, read your new state's statute before the truck is loaded. If you travel, check every state on the route. Once you know your home state's rules, comparing any other state against them goes quickly.
Buying and Owning a Gun
Learn who may buy and how a sale works, and your purchase goes smoothly with no surprises at the counter. Ownership also brings a duty to store the firearm well, and storage rules follow right after the buying basics.
Prohibited Persons
Federal law bars certain people from owning firearms. The list includes anyone convicted of a crime punishable by more than a year in prison, fugitives and unlawful users of controlled substances. It also covers people involuntarily committed or found mentally incompetent by a court. People under certain domestic violence restraining orders and anyone convicted of misdemeanor domestic violence are barred too. Several states' gun laws add categories of their own. If you have an old conviction or court order, ask an attorney whether your rights were restored before you shop.
Buying From a Dealer
Bring a valid government photo ID to a licensed dealer. You fill out ATF Form 4473, and the dealer runs a NICS check. The answer comes back as proceed, delayed or denied. Under federal law, a dealer may transfer the firearm after three business days if no final answer arrives, though some states set longer waits. Federal law sets the dealer purchase age at 18 for rifles and shotguns and 21 for handguns. If you are denied and believe it is an error, file an appeal. The FBI's Voluntary Appeal File can then help prevent repeat delays.
Buying in a Private Sale
Federal law allows a private sale between two residents of the same state without a background check. The seller must have no reason to think the buyer is prohibited. A sale between residents of different states must go through a dealer. Many states now require every sale, private or not, to run through a dealer check. Write a simple bill of sale with names, date and serial number to give both sides a clean record.
Permits and Waiting Periods
Some states require a permit to purchase or an owner ID card before any sale. Roughly a dozen states plus Washington, D.C. set a waiting period on some or all purchases, as of 2025. If your state has a waiting period, buy well before you need the firearm. The wait is also useful time. Order a safe, book a class and read the owner's manual before pickup. Learning how to buy a gun in your state takes one call to a local dealer, who handles these steps every day.
Storage and Child Access
Safe storage laws set how you must store firearms. Child access prevention laws hold owners responsible when a minor gets hold of an unsecured gun, and some carry criminal penalties. Meet the standard with a locked gun safe, a quick-access handgun vault by the bed or a cable lock through the action. If you have children at home, lock every firearm that is not on your body and store ammunition separately. If you have no children, lock up anyway for visiting grandkids, guests and burglars. Pair storage with firearm safety training for everyone in the family, and the whole house knows the rules.
Carrying and Defending Yourself
Understand carry rules and the limits on force, and you can carry with confidence and act within the law under pressure. Carry permits come first, then the self-defense rules that apply when you have to act.
Carry Permits
A concealed carry permit is a state license to carry a hidden handgun. Most states issue one to any adult who passes a background check and meets the training rules. Since the Supreme Court's 2022 Bruen decision, states cannot require a special reason to grant one. Expect fingerprints, a fee and, in many states, a class with live fire.
Permitless Carry
Permitless carry, also called constitutional carry, lets eligible adults carry without a permit. As of 2025, 29 states allow it, usually for people 21 and older who can legally own a gun. Restricted places such as schools, courthouses and federal buildings still apply. If you live in a permitless carry state, a permit is still worth having. It extends your carry rights into other states and, in some states, lets you skip the NICS check at purchase.
Reciprocity
Reciprocity is the agreement that lets one state honor another state's permit. There is no national reciprocity, so each state decides which permits it accepts. Before a road trip, check gun laws state by state for every state on your route. Print the results and keep them with your registration papers.
Reasonable Fear Comes First
Every state requires a reasonable fear of death or serious bodily harm before you use deadly force. Reasonable means an ordinary person in your position would share that fear. The threat must be immediate, and your response must match it. The rules below change where you must retreat, not this core requirement.
Duty to Retreat
A duty to retreat means you must leave a dangerous situation before using deadly force, if you can do so in complete safety. A minority of states apply this duty outside the home. If you live in one, make noting exits in stores and parking lots part of your everyday awareness.
Castle Doctrine
The castle doctrine removes the duty to retreat inside your own home. Many states go further and presume a reasonable fear when someone breaks in unlawfully and by force. Some states extend it to your vehicle or workplace, so read the exact wording in your state's statute.
Stand Your Ground
A stand your ground law removes the duty to retreat anywhere you have a legal right to be. About 38 states follow this rule by statute or court decision, as of 2025. It still requires that you were not the aggressor and that your fear was reasonable.
When the Law Gets Involved
Know what happens after a defensive shooting and you can protect yourself legally during the hardest minutes of your life. A short history explains why the rules look the way they do, and three simple steps complete the plan.
The First Minutes After
Knowing what to do after a self defense shooting starts with safety. Once the threat has stopped, holster or set down your firearm so arriving officers see empty hands. Call 911, give your location, say you were attacked and ask for medical help for anyone injured. When police arrive, follow every command. State that you are the victim, point out evidence and witnesses, and say you will give a full statement after you speak with your attorney. Expect officers to take your firearm as evidence, so keep a second plan for home defense.
Where Today's Rules Came From
The Second Amendment was ratified in 1791 as part of the Bill of Rights, and Congress began passing major federal gun laws in the twentieth century. The history of the Second Amendment turned again when the Supreme Court recognized an individual right to keep a handgun at home in 2008, applied it to the states in 2010 and set a history-based test for gun laws in 2022.
Three Steps for This Weekend
Preppers put by food, water and first aid for the day they need them, and legal knowledge belongs on the same shelf. First, read your state's gun laws on buying, storage, carry and self-defense, and print the parts that apply to you. Second, store your firearms to the standard your state sets, and add a lock or safe wherever you fall short. Third, find a local attorney who handles self-defense cases and save the number in your phone before you ever need it. Those three steps cover what every gun owner needs to know before a question becomes urgent.
