A revolver is a type of handgun that features a rotating cylinder containing multiple chambers for ammunition. Each chamber holds a bullet, and as the trigger is pulled, the cylinder rotates to align a chamber with the barrel, allowing the gun to fire. Revolvers are known for their reliability and simplicity, making them popular for both self-defense and recreational shooting. Revolvers come in various calibers and designs, with some models featuring a double-action mechanism that allows the shooter to pull the trigger to both rotate the cylinder and fire the bullet. Others have a single-action mechanism, requiring the shooter to manually cock the hammer before firing. Notable examples of revolvers include the Colt Python and the Smith & Wesson Model 686.