Dmitry Shulgin reports that,

Airbus Helicopters, Inc. (AHI) has delivered the first of 16 new H125 helicopters uniquely configured for U.S. Customs and Border Protection (CBP) Air and Marine Operations (AMO). AMO collaborated with AHI as part of a long-term fleet upgrade initiative, and the resulting configuration has led to one of the most advanced, high-tech law enforcement helicopters ever developed.

This light (Max takeoff weight: 2,250 kg (4,960 lb)), single engine helicopter, previously designated the AS350, has enjoyed great success with CBP. Wikipedia notes,

By 1999, the AS350 had become the prime helicopter being used by the United States Customs Service for light enforcement operations; by 2007, the agency had become the single largest operator of the type in the world.

Apparently these are being procured via GSA contract.