In most of the United States, yes: a Byrna is not a firearm under federal law, and most states do not regulate where a CO2 launcher can be kept in a vehicle. But "most" is doing work in that sentence. Some states and cities regulate launchers or pepper projectiles specifically, and some treat anything pistol-shaped the way they treat a pistol. This guide covers the general rule, the places to check, and how to stage a Byrna in a car so it is reachable and safe.
The general rule
Federal law does not classify a Byrna as a firearm, so federal firearm transport rules do not apply. Most states follow that. In those states you can keep a Byrna in your car, loaded, in reach, the way you would keep pepper spray. Chemical rounds are regulated separately in a few states, so the launcher may be legal where the pepper rounds are not.
Where to check
Byrna publishes a state-by-state guide and it is the place to start. States with their own launcher or projectile rules, and cities like New York, deserve a look before you drive through with one in the console. This is not legal advice; laws change, and you are responsible for the one that applies where you are.
How to stage it in a car
On your body
The most reliable place, in a holster, at 3 o'clock or appendix, where a seatbelt does not block the draw. The SD/EP holster or LE holster covers the trigger and clicks.
Mounted
A Byrna has a polymer frame and no steel slide, so a gun magnet does not hold it the way it holds a pistol; a SofHold magnet will grab the steel in the frame on some models but do not count on it without testing. A holster screwed or strapped under the dash, or a console with the launcher in its holster, is the better mount.
Spare magazine
Covered, in the door pocket or console, with a spare CO2. The mag cover PLUS holds both.
Heat and cold
CO2 pressure rises in a hot car and drops in a cold one. Neither is dangerous in normal ranges, but a Byrna left in a car all winter will shoot slow until it warms up. Keep it on you when you leave the car; the launcher is also the thing a thief takes.
Byrna and the industry call these launchers less-lethal, not non-lethal: a hard projectile at close range or to the eye can injure someone, and a Byrna deserves the same handling rules as a firearm.
Frequently asked questions
Is it legal to keep a Byrna in my car?
In most states, yes. Some states and cities regulate launchers or pepper rounds; check Byrna's state guide and your local law.
Can I keep it loaded in the car?
Where the launcher is legal, generally yes. The Pull-Pierce system means it holds pressure until fired.
Does a gun magnet hold a Byrna?
Not reliably. The frame is mostly polymer. Use a holster.
Can I drive across state lines with one?
Check each state you pass through. The launcher and the chemical rounds are regulated separately.
What about a rental or company car?
Company policy may prohibit it regardless of law. Ask.
The bottom line
Legal in most places, worth checking in a few, and best carried on your body in a holster rather than left in the car.
Related reading
How to conceal carry a Byrna launcher
Best car gun holsters (no drilling)
What is a Byrna launcher?
