From News 4 Tucson:

We learned that U.S. Customs and Border Protection’s Offices of Border Patrol and Training and Development are inspecting the quality of agents’ M4 carbines throughout Border Patrol sectors nationwide. But agents tell us, some of those M4s have not been replaced. And, we’ve learned, agents are required to share rifles amongst each other.

 

Customs and Border Protection released a statement to the News 4 Tucson Investigators last week, stating: “CBP’s Offices of Border Patrol and Training and Development are jointly inspecting the serviceability of M4 carbines throughout Border Patrol Sectors nationwide. Some of (the) inspected M4 carbines were deemed unserviceable and removed from inventory to alleviate safety concerns. Inspections will continue to ensure the unserviceable M4 carbines are repaired or replaced for reintroduction into the field. No further information is available at this time.”