
The magazine ban is one of several Washington gun control laws that has faced legal challenges in recent years
TJ Martinell
The Center Square Washington
A gun rights advocacy group is seeking summary judgment in its lawsuit against a Washington state law banning gun magazines that hold more than 10 rounds.
In its motion for summary judgment, the Firearms Policy Coalition argued that the 2022 law banning “high capacity magazines” violates the Second Amendment, in part because it effectively amounts to a ban on firearms that use those magazines.
“Washington cannot get around the protection of the Second Amendment by banning magazines any more than it could by banning triggers or barrels,” the motion states.
Among the more recent court decision cited in the motion include the U.S. District Court case Barnett v. Raoul, in which a federal judge ruled against an Illinois state ban on certain magazines for violating the Second Amendment, as magazines fall under the definition of “arms.”
Another case cited was the U.S. Supreme Court decisions D.C. v. Heller and Caetano v. Massachusetts, which established that firearms could not be banned if they were in “common use at the time,” whereas “dangerous and unusual” weapons could face regulations.
The lawsuit was filed initially in June 2022 after Gov. Jay Inslee signed Senate Bill 5078 into law, which took effect in July of that year. The Alliance for Gun Responsibility later joined in the case as an intervenor-defendant.
The magazine ban is one of several Washington gun control laws that has faced legal challenges in recent years, including several lawsuits filed this year against the state’s ban on firearms defined as “assault weapons.” The lawsuit filed in federal court was denied a temporary injunction against the law, while a Thurston County Superior Court judge issued a similar decision that same month.
This report was first published by The Center Square Washington.
Also read:
- OII completes investigation into Clark County Sheriff’s Office use of deadly force in July of 2025A 77-page OII report on the July 30, 2025 death of Branden Whitcomb now goes to the Clark County Prosecutor’s Office.
- VIDEO: Entrepreneur exodus continues as Washington’s new income tax loomsVenice.ai founder Jesse Proudman says Washington’s new income tax is the final blow driving him and others out of the state.
- WA gets $538M in delayed COVID-era payments from FEMAFEMA is sending $538M to Washington state health departments and hospital systems for COVID-era costs after years of delays.
- Opinion: When you’ve lost Christine Gregoire, you’ve lost WashingtonFormer Gov. Gregoire says Washington’s $80B budget reflects a spending problem, not an income problem.
- Letter: Present bridge plan has been in the expensive and unworkable planning stage far too long with no real end in sightBrush Prairie resident Bob Mattila argues the I-5 Bridge plan doubles costs by including light rail on the span.
- Letter: Stop turning gas prices into war propagandaCamas resident Tony Teso fires back at Jonathan Hines, arguing militarism won’t lower fuel costs for working families.
- Letter: Compassion requires accountabilityA medical provider and downtown Vancouver resident challenges whether current homelessness policies produce measurable results.








