.36 cal, 7 3/8" octagon barrel with a fair bore showing overall moderate pitting and oxidation with some bright streaks and otherwise quite good rifling. The metal surfaces of this Old Model Navy revolver have mostly toned to a mix of dull gray and gunmetal showing scattered light dings and areas of old pitting. Serial number is 18402, grips remain in a very good plus condition. The hammer cocks normally and the action is generally functional, though timing is a bit off. A good old model revolver with a lot of character.