One major comedic source is Barney 's lack of ability with a firearm. After numerous misfires (usually a Colt. 38 caliber revolver), Andy restricts Barney to carrying only one bullet in his shirt pocket, "in case of an emergency. '' However, the bullet always seems to find its way back into the gun, where Barney accidentally shoots it, usually into the floor, the ceiling, or his own gun holster. The accidental discharge of Barney 's gun becomes a running gag. Another gag has Barney locking himself or together with Andy in one of the jail cells, with the keys just out of reach. Realizing that they ca n't get out, they shamelessly yell for help.
what type of gun did barney fife carry
a Colt. 38 caliber revolver