A revolver is a repeating firearm with multiple chambers and at least one barrel for firing. As the user cocks the hammer, the cylinder revolves to align the next round with the barrel, which gives this type of firearm its name. In 1836, Samuel Colt invented the world’s first practical revolving firearm. According to Samuel Colt, he came up with the idea for the revolver while at sea, inspired by the capstan winch, which had a ratchet and pawl mechanism on it, a version of which was used in his guns to rotate the cylinder.

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