Can you get in trouble for owning an 80% lower?
Asked by: Bobbie Rosenbaum | Last update: February 7, 2026Score: 4.6/5 (73 votes)
Yes, you can get in trouble for owning an 80% lower, as regulations vary significantly by state, with some states treating them like finished firearms, requiring serialization, background checks, and registration, while federal law generally still considers them not firearms unless part of a kit. Owning one without following specific state laws (like in California, New York, or Illinois) can lead to penalties, even though the ATF's rule attempting to regulate them has faced legal challenges, impacting kits more than individual lowers.
Are 80% AR lowers still legal?
Yes, 80% AR lowers are still legal under federal law for personal use as they aren't considered firearms until finished, but legality varies significantly by state, with some states like California, New York, and New Jersey having bans or strict serialization/background check requirements, so you must check your specific state and local laws, according to 80% Arms.
Are 80 percent lowers traceable?
State-Specific Laws for 80% Lowers
California and New York have strict laws regarding 80% lower receivers. These states require serialization and registration to prevent the creation of “ghost guns,” which are firearms without serial numbers and are untraceable.
Is it legal to finish an 80% lower?
Legal Framework and Definitions
That definition clearly excluded unfinished receivers and parts kits lacking core functionality for decades. That's why Americans could lawfully buy and finish 80% lower receiver kits at home—because those products were not considered firearms.
Is it illegal to have a polymer 80?
Polymer80 (P80) kits, known as "ghost guns," exist in a complex legal area, but are largely regulated as firearms now, requiring serial numbers and background checks, especially after a 2022 ATF rule made unfinished frames and kits subject to federal law, though state laws vary, and the company itself faced major lawsuits and is now defunct. While making a gun for personal use without selling it has generally been legal, the federal government now treats these kits like regulated firearms, and many states have their own stricter rules.
80% Lowers. STOP BUYING THEM! Understand your local laws.
Do I have to serialize my 80 lower?
For personal use, federal law generally doesn't require you to serialize an 80% lower receiver, but once completed into a firearm, you must serialize it if you plan to sell or transfer it; however, strict state laws, like in California or Connecticut, mandate serialization even for personal builds before completion, so checking your local laws is crucial.
Is a P80 a ghost gun?
A “ghost gun” is a self-made firearm that is not registered and has no serial number, making it extremely difficult to trace. These self-made firearms are also known as polymer 80 guns or 80% guns, and are guns that are purchased in two parts and assembled by the owner.
Do I need FFL for stripped lower?
When building an AR15 Lower Receiver, the first thing you will need is a stripped lower receiver. This is the registered part of the AR15 so it will need to be transferred or purchased through an FFL Dealer.
What happens if you get caught with a fake gun?
Getting caught with a fake gun, even if not used in a crime, can lead to serious charges like disorderly conduct, brandishing, or unlawful possession, resulting in jail time and fines, especially in public places where it causes fear. If used in a crime, like robbery, it's often treated as if a real weapon were used, leading to felony charges, significant prison sentences, and a permanent criminal record because it creates the same threat to victims.
Is a P80 considered a Glock?
At this time, a renaming of the pistol took place: the P80 became known as the GLOCK 17. This number corresponded to its magazine capacity.
Are 80% lowers legal in 2025?
Yes, 80% lowers are generally still legal to buy and build in 2025, as federal law doesn't regulate them until completed, but legality hinges on specific state laws, with states like California imposing strict serialization, registration, and background checks on finished builds, while the Supreme Court's 2025 ruling upheld ATF rules affecting parts kits (especially for pistols) but didn't ban standalone AR lowers, keeping the focus on state-level compliance.
Do you get flagged for buying ammo?
STANDARD ELIGIBILITY CHECK
It takes place at the register before you are cleared to purchase ammunition. Approval occurs if you are in AFS and your ID info matches AFS records. Denial occurs if you are flagged in PAPF and/or your info on your ID does not match AFS, or you do not have an AFS profile/record.
Do I have to serialize my Ghost Gun?
Serial numbers and background checks for component parts, all ghost guns must be reported to officials, no 3D printing of guns. Serial numbers and background checks for all firearms and component parts. All ghost guns must be reported to officials.
Can you sell a completed 80% lower?
Make it for yourself and keep it for yourself. But if you do decided to sell (or buy) an 80% lower built gun, you must complete the transaction like any other firearm. This means that interstate transfers must go through an FFL.
Can cops buy full auto guns?
For example, someone can lawfully possess a machine gun made this morning if it is in connection with their duties as a government or law enforcement official, or if they have their Federal Firearms License (FFL) and have either made or possess the machine gun for possible sale to government/law enforcement personnel.
Do you need a background check for an 80% lower?
AB 1621 and other regulations mean you can't just buy an 80% lower and start drilling without oversight. If you purchase one, it must go through a licensed dealer with a background check, and any completed firearm needs a serial number and registration with the DOJ.
What kind of guns are illegal to own?
#5 California
- “Assault weapons” - Banned.
- “Cane guns,” or guns that are otherwise not easily identifiable - Banned.
- Zip guns (improvised firearms) - Banned.
- Short-barreled rifles and shotguns.
- Unconventional pistols (barrel shorter than 18” or overall length less than 26”) - Restricted.
- Undetectable firearms - Banned.
Can you defend yourself with a gun that isn't yours?
Generally speaking, it is acceptable to borrow someone else's firearm if you need to defend yourself. It may not be possible to ask for permission in a life-or-death situation, and you may need to act quickly.
What are fake guns called?
Airsoft guns are often designed to realistically resemble actual guns, making it difficult to distinguish them despite the orange muzzle tips in some jurisdictions. This has led to police shooting airsoft gun handlers believing these are real firearms and a deadly threat.
Do gunsmiths make a lot of money?
Gunsmiths generally make a modest income, averaging around $45k-$50k, but it varies significantly; making good money often requires specializing (e.g., engraving, custom builds, specific firearm types like muzzle brakes), building an excellent reputation, gaining extensive experience, and potentially opening your own successful shop, which carries risks but offers higher earning potential (some report over $100k). Many find it's a challenging career financially unless they are exceptional or highly specialized, with some advising it's better as a hobby than a primary income source.
Can I have a stripped lower sent to my house?
However, the lower receiver is a different story. It's classified as the firearm part, even when stripped, and must be shipped to a Federal Firearms License (FFL) holder. This means you'll need to pick it up at a licensed dealer, where a background check is required.
What is the fine for having an unregistered gun?
Penalties for possessing an unregistered firearm vary greatly by jurisdiction (state/country) and circumstances (prior offenses, loaded/concealed, type of gun), but generally range from hefty fines and probation to significant felony prison time, potentially years or even decades, especially if it's a prohibited weapon or linked to other crimes. Expect misdemeanor charges for simple cases but felony charges and harsher sentences with aggravating factors like a prior felony conviction.
Is Polymer80 illegal?
Polymer80 (P80) kits, known as "ghost guns," exist in a complex legal area, but are largely regulated as firearms now, requiring serial numbers and background checks, especially after a 2022 ATF rule made unfinished frames and kits subject to federal law, though state laws vary, and the company itself faced major lawsuits and is now defunct. While making a gun for personal use without selling it has generally been legal, the federal government now treats these kits like regulated firearms, and many states have their own stricter rules.
What is the 26 inch rule?
The "26-inch rule" in firearms refers to a key measurement that determines if a firearm, especially a pistol-like build with a stabilizing brace, falls under the National Firearms Act (NFA) as an "Any Other Weapon" (AOW) or short-barreled rifle (SBR), with firearms under 26 inches generally considered concealable and potentially regulated, while those over 26 inches might escape AOW classification if they also have barrels 16 inches or longer, creating complex NFA loopholes and compliance issues, though recent court challenges have created legal uncertainty around ATF's brace rules.
What happens if they catch you with a ghost gun?
The criminal penalties associated with violating the laws concerning ghost guns are severe. If an individual is found guilty of possessing a ghost gun, they can be convicted of a Class E felony. Punishment can include a jail sentence of four years, five years probation, and a fine up to $5,000.