3 Amarillo Men Indicted in Stolen Firearm, Car Burglary Probe

Federal indictment alleges conspiracy involving stolen guns and illegal firearm modifications.

Apr. 10, 2026 at 10:22pm

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An extreme close-up photograph of a small metal Glock switch device against a stark black background, conceptually illustrating the threat posed by these illegal firearm modifications.A confiscated Glock switch device, a dangerous modification that turns semi-automatic pistols into illegal machine guns, highlights the threat of these illicit firearm conversions.Amarillo Today

Three Amarillo men - Austin Lee Dykgraaf, Erminio Jesus Lujan, and Zaneth Lane Montgomery - have been named in a federal indictment for their alleged involvement in a conspiracy to possess stolen firearms, including some equipped with illegal 'Glock switch' machine gun conversion devices.

Why it matters

The indictment highlights the growing problem of illegal firearm modifications and the threat they pose to public safety, as 'switches' can convert semi-automatic pistols into fully automatic machine guns. The case also sheds light on the link between property crimes like car burglaries and the trafficking of stolen firearms.

The details

The indictment alleges the three men conspired to possess firearms that had been stolen, and that three of the eight counts involve the men 'knowingly possessing' firearms equipped with Glock switch machine gun conversion devices. Dykgraaf and Lujan were arrested by the Potter County Sheriff's Office in August 2025 after a traffic stop led to the recovery of a stolen firearm and a subsequent search warrant that uncovered numerous other stolen items. Montgomery is currently on deferred adjudication for several charges including theft of a firearm.

  • The federal indictment was unsealed on April 10, 2026.
  • Dykgraaf and Lujan were arrested by the Potter County Sheriff's Office in August 2025.
  • Montgomery is currently on deferred adjudication for charges including theft of a firearm.

The players

Austin Lee Dykgraaf

One of the three Amarillo men named in the federal indictment.

Erminio Jesus Lujan

One of the three Amarillo men named in the federal indictment.

Zaneth Lane Montgomery

One of the three Amarillo men named in the federal indictment, currently on deferred adjudication for several charges including theft of a firearm.

Potter County Sheriff's Office

The law enforcement agency that arrested Dykgraaf and Lujan in August 2025 during a traffic stop that led to the recovery of a stolen firearm.

Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF)

The federal agency that defines 'switches' or machinegun conversion devices as an 'extraordinary threat to public safety'.

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What’s next

The three men are currently in custody at Randall County Jail and all have federal holds. Their state charges are still pending.

The takeaway

This case highlights the dangerous intersection of property crimes, illegal firearm modifications, and the threat they pose to public safety. It underscores the need for continued vigilance and coordination between local and federal law enforcement to address the growing problem of 'switches' and other illicit gun accessories.