10th Circuit to Colorado: You Can't Kill This Ghost Gun Case

Gun owners in the Centennial State scored a hard-won procedural victory Wednesday that anti-gun lawmakers in Denver absolutely did not see coming.

The Tenth Circuit ruled that Second Amendment plaintiffs have full standing to challenge Colorado's ban on possessing unserialized firearms—and sent the case back to the district court with new marching orders: redo the injunction analysis you got wrong the first time.

**The lower court punted. The appeals court wouldn't let it.**

Here's the piece that makes this ruling especially significant. The appellate panel held that the ATF's federal rule on unserialized firearms can still be challenged by these plaintiffs—independently—even though the Supreme Court already upheld that rule on other grounds in a separate case. The Tenth Circuit refused to let that SCOTUS ruling act as a kill shot. Different challengers, different arguments, still very much alive.

And Colorado's law is actually more aggressive than the federal rule. While federal regs focus on manufacture and transfer, Colorado went further—banning simple *possession* of unserialized firearms. That's the hook the plaintiffs drove straight through, and the Tenth Circuit agreed the district court never properly analyzed whether that possession ban can survive constitutional scrutiny under *Bruen*'s historical tradition test.

Spoiler: it can't.

Under *Bruen*, Colorado must demonstrate a historical tradition of banning Americans from possessing firearms that lack a government-assigned serial number. No such tradition exists—because home-built firearms have been legal in this country for over 200 years. The Founders never asked anyone to serialize a flintlock.

**Colorado can't manufacture history it doesn't have.**

Governor Jared Polis signed this law as part of the state's ongoing effort to turn Colorado into California with a ski pass. His legislative allies dressed it up with the "ghost gun" label—a media-friendly phrase designed to make home-built, legally assembled personal firearms sound sinister. The framing was always the point. The ban was always the goal.

Now the district court has to decide whether law-abiding Coloradans can be stripped of firearms they legally built and legally own, simply because those firearms don't carry a government serial number. That's the question on the table. Watch what the lower court does with it.

If the court grants the injunction, Colorado's possession ban could be paused while the full legal battle plays out. That would be a massive, tangible win for gun owners living under this law right now—not a theoretical future victory, but immediate relief.

**The Tenth Circuit handed 2A advocates a procedural lifeline in a state determined to disarm law-abiding gun owners one quiet ban at a time.**

This case matters far beyond Colorado. Anti-gun legislatures in at least a dozen other states are watching this blueprint. If Colorado's possession ban collapses under *Bruen* scrutiny, those copycats lose their legal cover too.

The fight moves back to the district court. Stay locked in—the injunction ruling is the next domino, and it could fall fast.