Revolver

From Conservapedia

A revolver is a type of repeating firearm in which several chambers within a rotating cylinder line up sequentially with the barrel of the firearm. There are two types of revolvers: single action revolvers must be manually recocked after each shot (which also rotates the next chamber to align with the barrel); double action revolvers have a mechanism which automatically cocks and rotates the cylinder when the trigger is pulled. Double action revolvers may also be manually cocked in the same manner as a single action revolver.