A Milwaukee man has been sentenced to 88 months in prison for smuggling machinegun conversion devices (MCDs) and illegal possession of a firearm. Demario Robinson, aged 22, was convicted on December 5, 2024, as announced by Gregory J. Haanstad, United States Attorney for the Eastern District of Wisconsin.
Court records indicate that between July 11, 2022, and June 5, 2023, Robinson imported at least 202 MCDs, known as "switches." These devices convert ordinary pistols into fully automatic weapons. Approximately 59 MCDs were recovered from this operation, marking one of the largest distribution schemes discovered in Wisconsin. Robinson sold these devices within the greater Milwaukee area.
Milwaukee Police Department records show a significant rise in fully automatic gunfire incidents in Milwaukee between 2020 and 2023.
Robinson's arrest occurred on June 20, 2023, after U.S. Customs and Border Patrol agents intercepted a package from China containing 47 MCDs addressed to his residence. A search of his home uncovered a stolen Glock 19 handgun with an extended magazine and an MCD. Law enforcement also intercepted another package intended for him with ten additional MCDs. His prior felony drug conviction prohibited him from possessing any firearm.
United States District Judge Joseph P. Stadtmueller emphasized the increased danger caused by Robinson's sale of MCDs during sentencing. He stated that the sentence aims to deter similar activities by others.
"The dangerousness and lethality of 'switches' and similar conversion devices in our community cannot be overstated," said U.S. Attorney Haanstad. "The United States Attorney’s Office is committed to prosecuting offenders involved in the importation and distribution of these devices."
FBI Milwaukee Special Agent in Charge Michael Hensle highlighted the danger posed by these devices: "Machinegun conversion devices pose a real danger to our communities... The FBI... is unwavering in its commitment to disrupting the illegal use of these devices."
HSI Chicago Special Agent in Charge Sean Fitzgerald remarked on the severity of trafficking such dangerous weapons: “The sentencing of Robinson underscores the grave consequences... This case serves as a stark reminder that law enforcement agencies will relentlessly pursue those who endanger our citizens through their reckless and unlawful behavior."
Milwaukee Police Chief Jeffrey Norman commented on inter-agency collaboration: “This investigation demonstrates the positive impact... Working together allows us to effectively utilize intelligence and resources to help keep our community safe.”
The investigation was conducted by Homeland Security Investigations, FBI – Milwaukee Area Safe Streets Task Force, and Milwaukee Police Department – Special Investigations Division. Assistant United States Attorneys Bill Roach and Mike Schindhelm prosecuted the case.