A major Second Amendment ruling out of the nation’s capital has struck down Washington D.C.’s ban on firearm magazines holding more than 10 rounds.
In a 2–1 decision, the District of Columbia Court of Appeals ruled that the District’s prohibition on so-called “large capacity” magazines violates the Second Amendment. The case, Tyree Benson v. United States, centered on the criminal conviction of a man prosecuted under D.C.’s magazine capacity restriction.
The court concluded that magazines capable of holding more than 10 rounds are commonly owned across the United States and therefore fall within the protections of the Second Amendment.
Court: Magazines Are Protected “Arms”
The ruling applied the Supreme Court’s framework established in District of Columbia v. Heller and reaffirmed in New York State Rifle & Pistol Association v. Bruen. Under that standard, courts first determine whether the item regulated qualifies as an “arm” protected by the Constitution.
The D.C. Court of Appeals determined that magazines clearly meet that definition.
According to the majority opinion, firearm magazines “facilitate armed self-defense” by allowing a firearm to function as designed—feeding ammunition into the chamber as the gun cycles. Because they are integral to modern firearms, the court concluded they are protected by the plain text of the Second Amendment.
Once that threshold was met, the burden shifted to the government to justify the restriction by demonstrating that it was consistent with the nation’s historical tradition of firearm regulation.
The District failed to meet that burden.
“Common Use” Was Central to the Decision
The court also emphasized that magazines capable of holding more than 10 rounds are widely owned throughout the United States.
The majority opinion cited evidence that hundreds of millions of these magazines exist in civilian hands and that they come standard with many of the most popular firearms sold in America.
Because the Supreme Court has repeatedly held that arms in “common use” for lawful purposes cannot be banned, the court determined that D.C.’s restriction could not survive constitutional scrutiny.
The ruling ultimately vacated Tyrie Benson’s conviction for possessing the magazines.
Why This Decision Matters Nationally
Although the case directly affects only Washington D.C., the implications could extend far beyond the District.
Until now, several federal appellate courts—including the First, Seventh, and Ninth Circuits—have upheld similar magazine capacity limits enacted by states such as California, Illinois, and Massachusetts.
This new decision creates a legal conflict between courts over whether bans on magazines violate the Second Amendment.
That kind of disagreement between courts—often called a “circuit split”—is one of the key factors the U.S. Supreme Court considers when deciding whether to hear a case.
The ruling could therefore increase the likelihood that the Supreme Court will eventually take up the issue of magazine bans nationwide.
What Happens Next?
Washington D.C. could still attempt to challenge the ruling through additional legal steps. For example, the District could seek review by the full D.C. Court of Appeals or pursue further appeals.
If the decision stands, however, it could mark one of the most significant post-Bruen rulings addressing magazine capacity limits.
For gun owners and Second Amendment advocates, the case represents a major development in the ongoing legal battle over whether governments can prohibit commonly owned firearm accessories.
And with multiple related cases already moving through the federal courts, the question of magazine bans may ultimately be decided by the U.S. Supreme Court.
