By Police1 Staff
CHICAGO — U.S. Customs and Border Protection (CBP) officers in Chicago intercepted 473 shipments containing a total of 1,507 weapon-modifying devices in 2024, according to a CBP release.
The devices, known as “Glock switches,” are used to modify firearms to function as fully automatic weapons. The majority of these devices originated in China and were intended for delivery to various locations across the United States, CBP reported.
“These seizures clearly illustrate how closely CBP examines import manifests and identifies items that could potentially harm our nation or our citizens,” said LaFonda D. Sutton-Burke, Director of Field Operations for the Chicago Field Office. “Using their targeting experience, they’re able to consistently spot new shipping trends and keep these dangerous devices out of the hands of criminals. There are reasons these items are illegal.”
Pistol automatic fire conversion switches, which are illegal to use or possess, convert standard semi-automatic handguns into fully automatic firearms. These devices enable the user to pull and hold the trigger to fire continuously, discharging the maximum amount of ammunition. They can be purchased online or manufactured using 3D printers. The importation of such items is restricted by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).
For more information about CBP operations, visit www.CBP.gov, follow @CBPChicago and @DFOChicago on X, or explore CBP’s YouTube channel to learn about its border security efforts.
