Cimarron imported 1861 Navy Civilian Model black powder percussion revolver is shown with high polish modern blue finish. This revolver was probably the finest of all Colt percussion revolvers. The 1861 is rare in numbers because it was made at the end of the percussion era. .36 Caliber, 7 1/2" Barrel Length, Color Case Hardened, One Piece Walnut, Standard Blue Finish.