A California legal M1A is a Springfield Armory M1A configured so that it does not meet the state’s assault weapon feature test and feeds from a magazine holding ten rounds or fewer. In practice that means a rifle with a non-flash-hiding muzzle device, a traditional sporter stock, and a five- or ten-round magazine. Springfield sells factory-compliant versions with SKUs ending in “CA,” and those are the easiest route. Starting with a standard-state M1A works too, as long as you swap the flash suppressor and keep the stock geometry alone before taking possession.
The Feature Test Your M1A Has to Fail
California Penal Code Section 30515 defines a semi-automatic centerfire rifle as an assault weapon if it accepts a detachable magazine and has even one of the following features.1California Legislative Information. California Code PEN 30515 – Assault Weapons
- A pistol grip that protrudes conspicuously below the action
- A thumbhole stock
- A folding or telescoping stock
- A flash suppressor
- A forward pistol grip
- A grenade or flare launcher
A rifle also qualifies as an assault weapon if it has a fixed magazine capable of holding more than ten rounds, or if its overall length is less than 30 inches.1California Legislative Information. California Code PEN 30515 – Assault Weapons California regulations treat any grip forward of the trigger that allows a pistol-style grasp as a forward pistol grip, so vertical and angled foregrips both count.2New York Codes, Rules and Regulations. California Code of Regulations Title 11 Section 5471
For an M1A, the only features on this list that typically come into play are the flash suppressor and, if you’ve installed an aftermarket stock, a pistol grip or thumbhole.
Two Compliance Paths, One That Actually Fits the M1A
California gives you two ways to stay out of the assault weapon definition. A featureless rifle keeps a standard detachable magazine but has none of the listed features. A fixed-magazine rifle can keep the features, but the magazine has to be permanently attached in a way that requires disassembling the action to remove it.3Cornell Law Institute. California Code of Regulations Title 11 Section 5471
For the M1A, featureless is the clear choice. The rifle’s traditional sporter stock already lacks a pistol grip, thumbhole, and folding mechanism, and the platform doesn’t naturally mount a foregrip. Fixed-magazine solutions common on the AR-15 don’t translate well to the M1A’s operating system, and aftermarket options are scarce. Once the muzzle device is handled, a standard-stocked M1A is already most of the way to compliant.
What to Change on a Standard M1A
Muzzle Device
The factory M1A ships with a slotted flash suppressor, and that single part makes the rifle an assault weapon the moment a detachable magazine goes in. Replace it with a muzzle brake or compensator designed purely for recoil control, with no flash-hiding function. The California Department of Justice has taken the position that any device reducing or redirecting muzzle flash from the shooter’s field of vision qualifies as a flash suppressor regardless of how the manufacturer labels it.4California Department of Justice. Department of Justice Regulations for Assault Weapons and Large Capacity Magazines Final Statement of Reasons A “muzzle brake” that incidentally hides flash still counts. Look for a device that only redirects gas rearward or to the sides.
Stock
The M1A’s traditional sporter stock passes the pistol grip test because its wrist sits high enough that the web of your hand between thumb and index finger stays above the top of the exposed trigger during firing. That geometry does not meet the regulatory definition of a pistol grip.5California Department of Justice. California Code of Regulations Title 11, Division 5, Chapter 39 – Assault Weapons and Large-Capacity Magazines Both wood and synthetic sporter stocks work. Tactical replacement stocks with separate pistol grips or thumbhole cutouts do not, and installing one on a detachable-magazine M1A creates an assault weapon.
Nothing internal needs changing. Compliant muzzle device, compliant stock, ten-round magazine, and the rifle clears the feature test.
Buying a Factory-Compliant Model
Springfield Armory produces dedicated California variants identified by SKUs ending in “CA.” The Standard Issue line includes MA9106CA, MA9120CA, and MA9102CA.6Springfield Armory. M1A Standard Issue Rifles These ship with a muzzle brake instead of the flash suppressor and come with a ten-round magazine. Buying one of these removes the aftermarket work and the guesswork.
Confirm the SKU on the box before the transfer finalizes. Standard-state rifles occasionally reach California shelves through distributor error, and taking possession of a flash-suppressor-equipped M1A, even briefly, is the same offense as installing one yourself.
Magazine Capacity
California prohibits manufacturing, importing, selling, giving, or lending any magazine that holds more than ten rounds, and possession is a separate offense.7California Legislative Information. California Code Penal Code PEN 32310 The M1A commonly uses twenty-round magazines outside California, which is where many new owners first run into trouble.
Manufacturing, importing, or selling is a wobbler, chargeable as a misdemeanor with up to one year in county jail or as a felony under Penal Code 1170(h). Possession is an infraction with a fine up to $100 per magazine, or a misdemeanor carrying up to one year in county jail, a $100-per-magazine fine, or both.7California Legislative Information. California Code Penal Code PEN 32310
The status of magazines acquired during the brief “Freedom Week” window in late March and early April 2019 remains the subject of federal litigation, with partial stays in place while the case continues. That area of law shifts, and relying on it without tracking the current court orders is risky. Sticking with five- or ten-round magazines avoids the question entirely.
Buying an M1A in California
You have to be at least 21 to buy a semi-automatic centerfire rifle. Licensed dealers cannot deliver one to anyone younger, and the limited exceptions for active military, law enforcement, and hunting license holders do not extend to semi-automatic centerfire rifles for buyers under 21.
Before the purchase, you need a current Firearm Safety Certificate. The test costs $25, covers basic safety and legal knowledge, and the certificate is valid for five years. A failed first attempt gets a second try with the same instructor on the same fee.8State of California – Department of Justice – Office of the Attorney General. Firearm Safety Certificate Program
Every transfer runs through the Dealer Record of Sale system. The DROS fee is $31.19 and covers one or more firearms transferred to the same person in a single transaction.9New York Codes, Rules and Regulations. DROS Fees Once the Department of Justice accepts the submission, a ten-day waiting period begins. The dealer cannot release the rifle before it expires, and the DROS is cancelled if you don’t pick up the rifle within 30 days.10State of California – Department of Justice – Office of the Attorney General. Frequently Asked Questions – Dealer FAQs
Private sales go through a dealer too. California requires every private party transfer to be processed by a licensed dealer, who submits the DROS and runs the background check and may charge a processing fee. Before signing anything, inspect the muzzle device and stock. Taking possession of a non-compliant M1A, even in a private sale, is possession of an unregistered assault weapon.
Transporting and Storing the Rifle
California does not require non-concealable long guns like the M1A to travel in a locked container, but the rifle must be unloaded while in a vehicle. Registered assault weapons are a different story — those must be unloaded and inside a locked, fully enclosed hard-sided container secured by a padlock, key lock, or combination lock, with the trunk qualifying but a glove box or console not.11State of California – Department of Justice – Office of the Attorney General. Transporting Firearms in California A featureless M1A with ten-round magazines is not a registered assault weapon, so the locked-container rule does not apply to it. A case is still sensible practice.
At home, California imposes criminal liability on anyone who stores a firearm, loaded or unloaded, where a child or a person prohibited from possessing firearms is likely to gain access. First-degree criminal storage applies when access results in death or great bodily injury and is a wobbler carrying up to three years in prison and a $10,000 fine as a felony, or up to one year in county jail and a $1,000 fine as a misdemeanor. Second-degree criminal storage covers lesser injuries or carrying the firearm to a public place and is a misdemeanor with up to one year and a $1,000 fine.12California Legislative Information. California Penal Code 25100-25110 – Criminal Storage of a Firearm A conviction under either degree brings a ten-year firearm prohibition. A locked container, cable lock, or trigger lock covers the practical duty.
What a Non-Compliant M1A Costs You
Possession of an unregistered assault weapon under Penal Code 30605 is a wobbler. As a misdemeanor it carries up to one year in county jail. As a felony, 16 months, two years, or three years in state prison.13California Legislative Information. California Penal Code PEN 30605
There is a first-offense exception that drops the penalty to a $500 fine if you lawfully owned the rifle before it was classified as an assault weapon, have no prior conviction under the statute, are caught within one year of the registration deadline, and surrender the firearm for destruction.13California Legislative Information. California Penal Code PEN 30605 The registration window for rifles swept in by the 2016 bullet-button legislation closed on June 30, 2018, so this exception has little practical reach today.14State of California – Department of Justice – Office of the Attorney General. Frequently Asked Questions – Registered Assault Weapons
The firearm itself is typically seized and destroyed, and a felony conviction ends your right to own any firearm under California and federal law. Verifying every feature before the rifle leaves the counter is the whole game.