Revolver many European gun-makers, in numerous designs and configurations. However, these weapons were difficult to use, complicated and prohibitively expensive to make, and as such they were not widely distributed. In 1836, an American, Samuel Colt patented the mechanism which led to the widespread use of the revolver, the mechanically indexing cylinder. According to Samuel Colt, he came up with the idea for the revolver while at sea, inspired by the capstan, which had a ratchet and pawl mechanism on it, a version of which was used in his guns to rotate the cylinder by cocking the hammer. This provided a
Colt M1892 Colt M1892 The M1892 Colt Army & Navy was the first general issue double-action revolver with a swing-out cylinder used by the U.S. military. In 1892 the gun was adopted by the Army in .38 Long Colt caliber, and the revolver was given the appellation New Army and Navy. Initial experience with the gun caused officials to request some improvements. This would be an ongoing condition, resulting in Models 1892, 1894, 1895, 1896, 1901 and 1903, as well as a Model 1905 Marine Corps variant. The revolver featured a counter-clockwise rotating cylinder, which could be opened for loading and ejection