The Justice Department has filed a lawsuit against California seeking to overturn the state’s newly enacted ban on Glock-style handguns, arguing the law violates the Second Amendment rights of law-abiding gun owners. The suit, filed by the department’s Civil Rights Division, also challenges California’s longstanding “Handgun Roster,” a list restricting which firearms residents may legally purchase. The case represents the latest escalation in an aggressive legal campaign by the Trump administration targeting state-level gun control measures nationwide.
Story Highlights
- The DOJ filed suit against California on July 1, challenging the state’s ban on “machinegun-convertible” pistols under Assembly Bill 1127.
- The lawsuit also seeks to overturn California’s Handgun Roster, which limits which firearms residents can legally purchase.
- The Justice Department argues the law violates Second Amendment protections affirmed in the Supreme Court’s Wolford v. Lopez decision.
- California Governor Gavin Newsom has vowed to defend the law, citing the state’s historically low gun death rates.
What Happened
The Justice Department filed a lawsuit on July 1 against California and Attorney General Robert Bonta, seeking to block enforcement of Assembly Bill 1127, a newly enacted state law banning the retail sale of handguns with a “cruciform trigger bar,” a design feature most closely associated with Glock-brand pistols. The law classifies such firearms as “machinegun-convertible pistols” because the design can be modified with small aftermarket devices, commonly called “switches,” that convert semi-automatic handguns into fully automatic weapons capable of firing continuously with a single trigger pull.
Acting Attorney General Todd Blanche announced the lawsuit, stating that “the Second Amendment is a sacred right belonging to all Americans, even those in California,” and asserting that “California cannot ban the most popular type of handgun in America.” Assistant Attorney General Harmeet Dhillon, who leads the department’s Civil Rights Division, said the division’s newly established Second Amendment Section would “defend law-abiding citizens from states that seek to disarm them illegally.” The lawsuit marks the first case brought by that section specifically targeting bans on firearms deemed susceptible to machine gun conversion.
The DOJ’s complaint also challenges California’s Handgun Roster, a decades-old system that restricts firearm sales to models specifically approved and listed by the state, arguing the roster illegally limits Californians’ access to modern firearms. Only two other states, Maryland and Massachusetts, maintain similar roster systems, and California’s roster has separately faced legal challenges from gun rights organizations including the National Rifle Association.
California’s law, which took effect July 1, the same day the DOJ filed suit, grandfathers in pistols sold before January 1, 2026, meaning existing legal owners of such firearms are not required to surrender them. The devices used to convert these pistols into fully automatic weapons, commonly known as “Glock switches,” are already illegal under federal law and banned in more than two dozen states, according to gun violence research organizations, but California’s new law goes further by prohibiting the underlying firearm design itself rather than solely the conversion devices.
California Governor Gavin Newsom criticized the lawsuit publicly, stating that “the Trump administration is once again trying to dismantle California’s commonsense gun safety laws,” and citing the state’s historically low crime and gun death rates as evidence the law serves a legitimate public safety purpose. A spokesperson for Newsom’s office said the state would not be “intimidated” and would continue defending the law in court.
Why It Matters
The lawsuit represents a significant test of how far the Second Amendment’s protections extend in the aftermath of recent Supreme Court decisions expanding gun rights, including the Court’s landmark Bruen and Heller rulings and its more recent decision in Wolford v. Lopez, which reaffirmed that states cannot broadly restrict citizens from carrying commonly used firearms for self-defense. The DOJ’s legal theory rests heavily on the argument that Glock-style pistols, given their widespread civilian use, qualify as “arms in common use” under Heller’s framework, a category the Supreme Court has held cannot be banned outright.
For gun owners and Second Amendment advocates, the case is being closely watched as a potential bellwether for similar disputes in other states. Maryland, Connecticut, and New York have enacted comparable bans on convertible pistol designs, and gun rights organizations including the National Rifle Association, Firearms Policy Coalition, and Second Amendment Foundation have separately sued Maryland over its version of the law, indicating a broader coordinated legal strategy across multiple jurisdictions.
For state governments, the case raises important questions about the scope of their traditional police power to regulate public safety threats, particularly given legitimate concerns about the criminal use of machine gun conversion devices, which law enforcement agencies nationwide have identified as an escalating threat in violent crime involving illegally modified firearms.
The establishment of a dedicated Second Amendment Section within the Justice Department’s Civil Rights Division also signals a structural shift in how the federal government approaches gun rights enforcement, treating Second Amendment protections as a civil rights priority on par with traditional anti-discrimination enforcement, a notable departure from the division’s historical focus.
Economic and Global Context
The firearms industry has a substantial economic stake in the outcome of this litigation. Glock-style pistols, along with similarly designed firearms from other manufacturers who adopted the cruciform trigger bar design after Glock’s original patent expired, represent a significant share of the handgun market nationwide. Restrictions on their sale in populous states like California could meaningfully affect manufacturer revenues and retail firearms sales figures.
California’s gun laws have long been among the most restrictive in the nation, and the state has repeatedly cited data showing declining gun death rates as justification for its regulatory approach. Newsom’s office has pointed to what it describes as historic lows in both overall crime and gun-related deaths as evidence that California’s broader regulatory framework, including the Handgun Roster and various weapons restrictions, has achieved its intended public safety goals, a claim that will likely factor into the state’s legal defense.
Nationally, more than two dozen states already ban machine gun conversion devices outright, according to gun violence research organizations, reflecting a broad bipartisan consensus against the switches themselves. California’s law, however, goes further by targeting the underlying firearm design, a distinction that places it at the center of the current legal dispute and differentiates it from device-specific bans that have faced less legal controversy.
The case also arrives amid a broader wave of DOJ litigation against state gun control measures, including a separate lawsuit filed the same day against Virginia’s newly enacted assault weapons ban, suggesting a coordinated nationwide legal strategy targeting state-level firearms restrictions across multiple categories of weapons regulation.
Implications
In the near term, the case will likely proceed through preliminary motions, including the DOJ’s request for a temporary restraining order, which could determine whether California’s law remains in effect while the broader litigation continues. California has already filed formal opposition to that request, setting up an early and consequential court ruling that could shape the case’s trajectory.
For gun manufacturers and retailers, the outcome will directly affect market access in California, the nation’s most populous state, with significant implications for national sales strategies regardless of how the case is ultimately resolved. A ruling favorable to the DOJ could also embolden manufacturers and dealers in other states with similar restrictions to pursue parallel legal challenges.
For state lawmakers nationwide, the case will serve as an important signal regarding the durability of state-level firearms regulations in the current legal environment, potentially influencing whether other states pursue similar legislation or reconsider existing measures in light of the litigation’s outcome.
For gun rights advocates and gun control proponents alike, the case represents a significant flashpoint in the ongoing national debate over the balance between individual constitutional rights and state authority to regulate firearms for public safety purposes, a debate likely to continue regardless of this specific case’s ultimate resolution.
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