Handguns of the FBI
This chronology of FBI firearms reflects the major models carried by agents since they were officially allowed to carry handguns in 1934. It reflects the different roles agents have been required to perform, ranging from investigative work, to that of the field SWAT teams. From the article "A History of FBI Handguns."
Colt Pocket Positive
1935 Colt Pocket Positive Revolver
Caliber: 32 Police
Personal Revolver of J. Edgar Hoover