Background
Steven Mathew Armstrong entered Accuracy Gun Shop in Las Vegas hoping to sell two firearms. A sales associate examining one of them, a Glock 30 handgun, saw that it carried an auto-sear—also called a switch. The device allows a semiautomatic pistol to fire more than one round from a single trigger function, converting it into a fully automatic weapon. Armstrong asked whether he could remove the device and still sell the gun. The employee declined, returned the firearm, and told him not to come back. The shop owner then contacted police and provided surveillance video of the attempted sale.
A Clark County jury convicted Armstrong of carrying a concealed firearm, possessing a machine gun under NRS 202.350, and violating NRS 202.274’s restrictions on modified semiautomatic firearms. He separately pleaded guilty to possessing a firearm as a prohibited person. The district court imposed 20 to 50 months for machine-gun possession and shorter concurrent terms on the other counts. On appeal, Armstrong challenged the firearm statutes under the Second Amendment and Article 1, Section 11 of the Nevada Constitution. He also argued that punishing him under both machine-gun statutes for the same Glock violated double jeopardy, and he raised evidentiary, instructional, and sufficiency claims.
The Court’s Holding
The Nevada Supreme Court affirmed most of the judgment but reversed the conviction for possessing a modified semiautomatic firearm. Justice Bell first concluded that Nevada’s machine-gun and auto-sear prohibitions violate neither the federal nor state constitution. Although the Glock and auto-sear are “arms,” their combination creates a machine gun: a weapon capable of firing multiple rounds through one trigger function. That differs from a bump stock, which still requires the trigger to function separately for each shot. Machine guns are dangerous and unusual weapons not typically possessed by law-abiding citizens for self-defense, placing them outside the Second Amendment’s protected core and within the nation’s historical tradition of firearm regulation.
The Nevada Constitution did not produce a different result. Its text protects keeping and bearing arms for security, defense, lawful hunting, recreation, and other lawful purposes. The court read the provision’s history as preserving ordinary lawful possession while allowing targeted regulation of especially dangerous weapons. Nevada prohibited machine-gun possession in 1989, seven years after voters adopted the state right-to-arms provision. Nothing in the amendment’s history showed that voters understood private possession of fully automatic weapons as constitutionally protected.
Double jeopardy required a different analysis. Nevada defines a machine gun as a weapon that fires more than one shot, without manual reloading, through a single trigger function. A semiautomatic firearm modified by an auto-sear to fire automatically necessarily satisfies that definition. Although the modified-firearm offense includes the added fact of modification, all its elements were subsumed within machine-gun possession on the facts charged. It was therefore a lesser-included offense, and both convictions could not stand. The justices remanded for an amended judgment removing the NRS 202.274 conviction while leaving the machine-gun conviction and Armstrong’s remaining convictions intact.
The court rejected Armstrong’s remaining arguments. Video, eyewitness testimony, and his statements adequately proved the firearm offenses. The gun-store employee could identify the Glock and attached device from personal observation, and an experienced officer could explain the auto-sear’s basic operation as lay testimony. Testimony identifying the gun’s “radically invasive projectile” ammunition should have received an other-act hearing, but the error was not prejudicial given the overwhelming evidence. The challenged jury instructions also correctly stated Nevada law or did not amount to plain error.
Key Takeaways
- Nevada may constitutionally prohibit civilian possession of machine guns and semiautomatic firearms converted to automatic fire with an auto-sear.
- An auto-sear differs from a bump stock because it permits multiple shots from one trigger function; a converted pistol therefore fits Nevada’s statutory machine-gun definition.
- When the same firearm supports both charges, possession of a modified semiautomatic firearm under NRS 202.274 is a lesser-included offense of machine-gun possession under NRS 202.350, so convictions for both violate double jeopardy.
- Firearm identification and a basic explanation of an auto-sear may qualify as lay testimony when based on personal perception and experience rather than scientific testing.
Why It Matters
Armstrong is Nevada’s clearest appellate treatment of auto-sears. Prosecutors may charge and prove that a switch-equipped pistol is a machine gun, and constitutional challenges will confront the court’s conclusion that fully automatic weapons are dangerous and unusual under federal doctrine and unprotected by Nevada’s broader textual reference to hunting, recreation, and other lawful purposes. Defense lawyers should preserve constitutional objections below; Armstrong’s unpreserved claims faced plain-error review before the court reached their merits.
The double-jeopardy holding has an immediate charging and sentencing consequence. When one converted semiautomatic firearm is the basis for both counts, the State may not retain convictions under both statutes merely because NRS 202.274 expressly focuses on modification. Trial counsel should raise multiplicity before verdict and ensure that judgments do not impose overlapping convictions, even when sentences run concurrently. The opinion also offers evidentiary guidance: ordinary visual identification may come from lay witnesses, but colorful ammunition evidence unrelated to an element risks an NRS 48.045 other-act problem and should be addressed outside the jury’s presence.