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Press Release

Las Vegas Resident Sentenced To Prison For Distribution of Fentanyl And Possession Of Machine Guns

For Immediate Release
U.S. Attorney's Office, District of Nevada

LAS VEGAS – A Las Vegas man was sentenced yesterday by United States District Judge Cristina D. Silva to 6 ½ years in prison followed by four years of supervised release for selling machine gun conversion devices and thousands of pills laced with fentanyl.

According to court documents, on or about December 16, 2021, Anthony Rivas (23) sold four machine gun conversion devices. On that same day, he sold about 100 pills containing fentanyl. In January and February of 2022, Rivas sold a multi-caliber rifle modified with a machine gun conversion device, and 3,000 pills containing fentanyl.

Fentanyl is classified as a Schedule II controlled substance. Fentanyl is a synthetic opioid drug that is approximately 80-100 times more potent than morphine and 50 times more potent than heroin. A few milligrams of fentanyl, which is equivalent to a few grains of table salt, may be deadly.

Rivas pleaded guilty in February 2023 to conspiracy to distribute a controlled substance-fentanyl and illegal possession of a machine gun.

United States Attorney Jason M. Frierson for the District of Nevada, Assistant Special Agent in Charge Kevin Adams for the Drug Enforcement Administration (DEA) Las Vegas District Office, and Special Agent in Charge Jennifer Cicolani for the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) made the announcement.

This case was investigated by the DEA, ATF, and Las Vegas Metropolitan Police Department. Assistant United States Attorney Melanee Smith prosecuted the case.

This effort was part of an Organized Crime Drug Enforcement Task Forces (OCDETF) operation. OCDETF identifies, disrupts, and dismantles the highest-level criminal organizations that threaten the United States, using a prosecutor-led, intelligence-driven, multi-agency approach. Additional information about the OCDETF Program can be found at

If you have information about illegal firearms activity, submit a tip to ATF by calling the hotline at 1-800-ATF-GUNS (1-800-283-4867) or through the ReportIt mobile app.



Updated May 23, 2023

Drug Trafficking
Firearms Offenses