A single action revolver is a type of handgun that requires the shooter to manually cock the hammer before each shot. This action prepares the firearm to fire, allowing for a lighter trigger pull when the trigger is pressed. These revolvers typically hold six rounds in a rotating cylinder and are known for their reliability and simplicity. Single action revolvers are often associated with the American Old West and are popular in cowboy action shooting. Famous models include the Colt Single Action Army and the Ruger Blackhawk. Their design emphasizes accuracy and ease of use, making them a favorite among enthusiasts and collectors.