In a blockbuster decision that's got Second Amendment advocates cheering from the rooftops, the U.S. Court of Appeals for the Tenth Circuit just handed gun builders a massive win against Colorado's overreaching ban on unserialized firearms parts. This ruling doesn't just smack down nanny-state regulations—it's a clear signal that your right to build your own firearm at home is protected under the Second Amendment.
The Case at a Glance: Rocky Mountain Gun Owners v. Polis
Colorado's HB23-1230, signed into law by Governor Jared Polis, aimed to criminalize the possession, sale, and manufacture of unserialized "firearms" and "large-capacity magazines." But here's the kicker: the law swept up unfinished frames, receivers, and parts kits—stuff that's been a staple for hobbyists and home builders for generations. Groups like Rocky Mountain Gun Owners (RMGO) and the National Association for Gun Rights sued, arguing this was a blatant Second Amendment violation.
The district court dismissed the case, but the Tenth Circuit said "not so fast." In a 2-1 decision penned by Judge Jerome Holmes, the panel ruled that Colorado's ban on unserialized parts implicates the Second Amendment. Translation: These aren't just hunks of metal; they're "bearable arms" or components thereof, protected by the Constitution. The court kicked it back to the lower court to apply the Bruen test—does the government have solid historical analogs from 1791 or 1868 to justify the restriction? Spoiler: They probably don't.
"The State’s prohibition on certain unserialized firearms and parts falls within the Second Amendment’s protections because it regulates conduct protected by the plain text of the Amendment: creating and possessing arms."
— Excerpt from the Tenth Circuit ruling
Why This Matters for Every Gun Owner
Let's cut through the legalese: This is about your freedom to tinker, build, and own without Big Brother slapping a serial number on every piece. Home firearm construction—think 80% lowers milled into functional receivers—has roots in American tradition. Our Founding Fathers didn't need ATF Form 4473 to defend their liberties.
Colorado's ban was part of the "ghost gun" panic, fueled by ATF's 2022 rule redefining what counts as a "firearm." States jumped on the bandwagon, but courts are pushing back. This Tenth Circuit smackdown joins victories like the Ninth Circuit's VanDerStok skepticism and district court injunctions nationwide. It's a lifeline for builders who value privacy and self-reliance over government tracking.
Bigger Picture: A Ripple Effect Across the Country
This isn't just a Colorado win—it's a blueprint for challenging similar laws in California, New York, and beyond. The Tenth Circuit explicitly rejected the idea that unfinished parts are fair game for regulation without historical backing. Expect more lawsuits, more injunctions, and hopefully, more common-sense rulings affirming that the Second Amendment isn't a suggestion.
Shoutout to RMGO's John Sanford and the legal eagles at America First Legal for fighting the good fight. Their persistence turned a potential loss into a pivotal precedent.
Stay Armed and Informed
Gun owners, this is why we celebrate victories like this but never rest. Anti-2A politicians will regroup—support your local gun rights orgs, vote like your rights depend on it (they do), and keep building those dream guns legally. The Second Amendment isn't self-enforcing; it's defended one court battle at a time.
What do you think—will this ruling doom "ghost gun" bans nationwide? Drop your thoughts in the comments below, and subscribe for more pro-2A updates straight to your inbox.
References
- https://cowboystatedaily.com/2026/04/28/court-rules-2nd-amendment-covers-firearms-parts-good-news-for-those-who-build-guns
- https://usconstitution.net/court-says-the-second-amendment-covers-firearm-parts
- https://www.ca10.uscourts.gov/sites/ca10/files/opinions/010111422830.pdf
- https://www.reddit.com/r/progun/comments/1szkv13/court_rules_2nd_amendment_covers_firearms_parts
- https://www.reddit.com/r/2ALiberals/comments/1syngcg/court_rules_2nd_amendment_covers_firearms_parts