Undetectable Firearms: California Penal Code 24610 PC

California enforces some of the strictest gun control and weapon regulations in the country. Under Penal Code 24610 PC, it is a serious criminal offense to manufacture, import, sell, give, lend, transport, or possess an undetectable firearm within the state.

Undetectable firearms—often associated with certain 3D-printed weapons, polymer builds, or specialized tactical items designed with minimal metal components—are prohibited because they pose severe security risks to public venues, airports, schools, government buildings, and law enforcement personnel.

Violations of this statute are typically prosecuted as felonies and carry state prison exposure, heavy fines, lifetime firearm bans, and long-term collateral consequences.

If you are facing investigation or criminal charges under PC 24610, immediate legal representation is essential. The criminal defense attorneys at Cron, Israels & Stark represent clients facing complex weapons allegations throughout Los Angeles and Southern California.

What Is California Penal Code 24610 PC?

California Penal Code 24610 PC broadly criminalizes both commercial activities and personal possession involving firearms that are engineered to bypass security screening equipment. Specifically, the statute makes it illegal to:

• Manufacture or assemble an undetectable firearm.

• Import an undetectable firearm into California.

• Keep, offer, or expose an undetectable firearm for sale.

• Sell, give, or lend an undetectable firearm to another individual.

• Transport or possess an undetectable firearm.

What Is an "Undetectable Firearm"?

Under state and federal definitions, an undetectable firearm is a weapon that fails to trigger standard metal detectors, X-ray equipment, or security screening devices because it lacks sufficient metal components. This includes:

• Plastic or polymer firearms with minimal or hidden metal parts.

• 3D-printed firearms built without required detectable metal inserts.

• Improvised or homemade weapons designed to evade airport security screening.

Penalties and Sentencing for PC 24610 Violations

A violation of Penal Code 24610 is prosecuted as a felony offense, carrying severe direct and collateral consequences:

Penalty Type	Potential Penalties & Consequences
Felony Criminal Charge	Prosecution as a felony offense resulting in a permanent criminal record.
Incarceration Exposure	Potential state prison or county jail time under realignment sentencing rules.
Financial Penalties	Substantial court fines, monetary assessments, and penalty fees.
Formal Probation	Supervised felony probation featuring strict compliance rules and mandatory search conditions.
Firearm and Ammunition Bans	Permanent loss of state and federal gun ownership rights, ammunition purchase privileges, and CCW permits.
Weapon Confiscation	Immediate seizure, forfeiture, and destruction of the prohibited firearm.
Immigration Consequences	Non-citizens face severe federal immigration risks, including green card complications, visa denials, and mandatory deportation.

Related California Firearm Laws

Undetectable firearm investigations frequently intersect with other strict California weapons statutes, including:

• California Penal Code 16520 PC – Definition of a Firearm: Establishes the broad legal definition of pistols, rifles, shotguns, and weapon components under state law.

• California Penal Code 23920 PC – Firearms Without Serial Numbers: Prohibits altering, removing, or obliterating firearm serial numbers (commonly tied to "ghost gun" prosecutions).

• California Penal Code 29180 PC – Self-Manufactured Firearms: Regulates self-built or homemade firearms, requiring strict serialization and state compliance.

• California Penal Code 29800 PC – Felon in Possession of a Firearm: Prohibits individuals with prior felony convictions from owning or possessing any firearm or ammunition.

Common Legal Defenses to PC 24610 Charges

An experienced criminal defense strategy challenges the physical evidence, weapon classifications, and constitutional legality of the police encounter. Common defenses include:

• The Weapon Is Not "Undetectable": Arguing through expert testimony or forensic evaluation that the firearm contains sufficient metal components to be detected by standard security screening systems.

• Lack of Knowledge: The prosecution must prove you knowingly possessed or handled the firearm. If the weapon belonged to someone else or was left in your space without your knowledge, this defeats criminal intent.

• Unlawful Search and Seizure (Fourth Amendment Violations): If law enforcement found the firearm during an unconstitutional traffic stop, illegal search, or warrantless home entry, defense counsel can file a motion to suppress the evidence, often resulting in a full case dismissal.

• Temporary Possession for Surrender: Proving possession was brief and intended solely for the immediate, lawful surrender or disposal of the weapon to law enforcement authorities.

Frequently Asked Questions (FAQs)

Are undetectable firearms illegal in California?

Yes. Under Penal Code 24610 PC, possessing, manufacturing, importing, selling, or transporting undetectable firearms is strictly prohibited statewide.

What is considered an undetectable firearm?

An undetectable firearm is a weapon engineered with insufficient metal components to trigger metal detectors, X-rays, or security screening equipment.

Are 3D-printed firearms illegal in California?

Certain 3D-printed or homemade firearms violate California law if they qualify as undetectable firearms or lack proper serial numbers and state registration.

Is a violation of Penal Code 24610 a felony?

Yes. Violations of PC 24610 are generally prosecuted as serious felony offenses carrying state prison exposure and permanent firearm bans.

Can illegal police searches lead to a dismissal of weapons charges?

Yes. If law enforcement officers discovered the firearm through an unconstitutional search or seizure, an attorney can move to suppress the evidence, which often leads to dropped charges.

Speak With a California Criminal Defense Attorney

Facing felony allegations under California Penal Code 24610 puts your freedom, record, and civil rights at immediate risk. Early legal intervention is critical to contest weapon classifications, challenge illegal searches, and protect your future.

The defense team at Cron, Israels & Stark specializes in defending clients against complex weapons and firearm charges across Los Angeles and Southern California. Protect your rights now—call (424) 372-3112 to book your confidential consultation.