The Federal Bureau of Investigation makes the switch back to 9mm after 30 years.
Since the mid 1980s the FBI, and many other federal agencies, have been carrying sidearms chambered in .40-caliber. The change took place in an effort to use more effective ammunition. Courtesy of significant ballistic improvements in the last 30 years, the agency will now switch back to 9mm firearms. It has again contracted with firearm manufacturer Glock to do so.
The contract calls for Glock to provide the FBI with multiple firearms including a compact pistol and full size pistol, as well as simulation and training pistols. Glock is expected to supply the FBI with a Glock 19 and Glock 17 for the compact and full size models, respectively.
The contract includes up to $85,000,000 over the course of the next ten years to outfit the FBI with the 9mm pistols. As many as ten additional government and law enforcement agencies like the U.S. Marshals, ATF, and the DEA could also make the switch under the new contract.