The Glock 19 Gen 4 is legal to own in California, but it isn’t legal for a dealer to sell you a new one. The pistol is not on the state’s Roster of Certified Handguns, so the only lawful ways to acquire one are a private party transfer through a licensed dealer, an intrafamilial gift from a qualifying relative, or bringing one with you when you move to the state. Each route still requires a background check, registration, and the right paperwork.
Why You Can’t Buy a New Gen 4 From a Dealer
California’s Unsafe Handgun Act requires every handgun sold at retail to pass safety testing and include specific design features before it can be listed on the state’s approved roster. A centerfire semiautomatic pistol must have a chamber load indicator and, if it accepts a detachable magazine, a magazine disconnect mechanism.1California Legislative Information. California Code PEN 31910 – Unsafe Handgun and Related Definitions Any new semiautomatic pistol model submitted after May 2013 must also incorporate microstamping, a microscopic engraving on internal parts that imprints the gun’s make, model, and serial number onto each fired cartridge case. The Gen 4 lacks all three features, and no manufacturer currently produces a microstamping-equipped pistol for the civilian market.
One nuance trips people up: the Glock 19 Gen 3 is on the roster. It was listed before the microstamping requirement took effect, so California dealers can still sell Gen 3s brand-new. The Gen 4 and Gen 5 came later and never made it through. That single generational gap is why the Gen 4 commands such a premium on California’s secondary market, typically two to three times its roughly $550 MSRP in free states.
Owning an off-roster handgun is not itself illegal. The restriction applies to commercial sales by dealers, not to possession.2California Legislative Information. California Code Penal Code 32000 – Unsafe Handgun Sale Prohibition
Buying Through a Private Party Transfer
This is the most common way Californians get a Gen 4. The seller is often a sworn peace officer, who is exempt from the roster restriction when buying handguns and may later resell them privately.3State of California – Department of Justice – Office of the Attorney General. State Exemptions for Authorized Peace Officers The resale still has to go through a licensed dealer.
Before you walk into the shop, have these in hand:
- A valid Firearm Safety Certificate. You earn it by passing a 30-question written test at any licensed dealer. The test costs $25 and the certificate is good for five years.4State of California – Department of Justice – Office of the Attorney General. Firearm Safety Certificate Program
- A valid California driver’s license or state ID.5State of California – Department of Justice – Office of the Attorney General. Frequently Asked Questions
- Proof of residency, such as a utility bill dated within the last three months or a current vehicle registration, with an address that matches your ID.6State of California Department of Justice. Title 11, Division 5, Chapter 4, Evidence of Residency Documentation
The seller must appear in person with valid California identification. The dealer processes the Dealer Record of Sale, collects the state fees, and starts the mandatory 10-day waiting period during which the California Department of Justice runs your background check.7California Legislative Information. California Code PEN 26815 – Sale, Lease, or Transfer of Firearms You can’t take possession until that period expires and the check clears. When you return, you’ll perform a safe handling demonstration under the dealer’s supervision.4State of California – Department of Justice – Office of the Attorney General. Firearm Safety Certificate Program
What You’ll Pay in Fees
The state-mandated costs for a private party transfer are:8California Department of Justice. California Department of Justice Bureau of Firearms Department of Justice Fees
- DROS fee of $37.19, which includes a $31.19 base fee, a $5 safety enforcement fee, and a $1 firearms safety fee
- Private party transfer fee of $10 per firearm
- $25 FSC test fee if you don’t already hold a valid certificate
Dealers often add their own administrative charge, and the purchase price itself is the real expense. Budget for two to three times what the gun sells for elsewhere.
Receiving One as a Gift From Family
California exempts firearm transfers between parent and child or grandparent and grandchild from both the dealer requirement and the roster restriction. That means a qualifying relative can legally give you an off-roster Gen 4.9California Legislative Information. California Code Penal Code PEN 27875 – Intrafamilial Firearm Transactions
The exemption is narrower than people assume. Siblings, aunts, uncles, and cousins don’t qualify. Spouses aren’t covered under this specific provision either. The person receiving the gun must be at least 18 and hold a valid Firearm Safety Certificate. Within 30 days of taking possession, the new owner has to file an Intra-Familial Firearm Transaction report with the California Department of Justice. The same 30-day window applies when a qualifying out-of-state relative leaves you a handgun through inheritance and you bring it into California.
Bringing One With You When You Move
If you already own a Gen 4 and relocate to California, you can bring it. You then have 60 days from the date you establish residency to register it.10State of California – Department of Justice – Office of the Attorney General. Firearms Information for New California Residents Registration means submitting a New Resident Report of Firearm Ownership (form BOF 4010A) with a $19 processing fee.11California Department of Justice. California Department of Justice Bureau of Firearms New Resident Report of Firearm Ownership The form asks for the serial number, make, model, and barrel length.
Missing the 60-day deadline is a criminal offense. A violation involving a handgun can be charged as a misdemeanor carrying up to a year in county jail, a fine of up to $1,000, or both. Before the gun crosses the state line, swap out any magazines holding more than 10 rounds. Bringing them into California is illegal regardless of whether you owned them lawfully elsewhere.
Keeping the Gun Legal After You Own It
The Gen 4 ships from the factory in most states with 15-round magazines. Those cannot be imported, sold, or possessed in California. You need 10-round magazines before the gun enters the state.12California Legislative Information. California Code Penal Code 32310 – Large-Capacity Magazines Possessing a large-capacity magazine is a separate offense, chargeable as an infraction with a $100 fine per magazine or as a misdemeanor carrying up to a year in county jail. Glock-compatible 10-round magazines are widely available.
Configuration matters beyond magazines. A semiautomatic pistol with a detachable magazine and a threaded barrel is classified as an assault weapon under California law.13California Legislative Information. California Code PEN 30515 – Assault Weapons A stock Gen 4 doesn’t come with a threaded barrel, but the aftermarket version is a popular upgrade elsewhere. Installing one in California turns a legal handgun into an unregistered assault weapon, punishable by up to a year in county jail or a state prison sentence.14California Legislative Information. California Code PEN 30605 – Assault Weapon Possession Adding a forward pistol grip creates the same problem. Keep the Gen 4 in its stock configuration and it stays a compliant handgun.
Don’t Try to Shortcut With a Straw Purchase
The off-roster premium creates a financial incentive that pulls some buyers into serious trouble. A straw purchase, where someone who can legally buy a gun (often a law enforcement officer) buys it specifically to resell it to you at a markup with the intent to work around the roster, is a federal crime. Under 18 U.S.C. ยง 932, a conviction carries up to 15 years in federal prison and a $250,000 fine.15Office of the Law Revision Counsel. 18 USC 932 – Straw Purchasing of Firearms If the firearm is later used in a drug trafficking crime or act of terrorism, the maximum rises to 25 years. Both the person doing the purchasing and the person it was done for face prosecution.
A legitimate private party transfer looks different. If an officer buys a Gen 4 for personal use and later decides to sell, that resale is lawful when it runs through a licensed dealer. The line is intent at the moment of the original purchase. If the gun was bought with the plan to flip it to a specific person, federal authorities treat the deal as trafficking, and they investigate these cases actively in California because of the demand for off-roster firearms.