Working Colt's Model 1877 Double-Action Revolvers

Colt's first double-action revolver was their model of 1877, a six-shot, rod-ejector pistol capable of both double- and singe-action operation. The revolver was designed in 1876 by a well known Colt employee, William Mason. The 1877 pistols were built on a medium frame, and used a small birds-head-shaped grip. They were initially chambered only in the .38 Long Colt caliber, though the .41 Colt caliber was added later. Small numbers were also manufactured in .32 Colt caliber. "Lightning" was the nickname given to the .38-caliber versions, while .41-caliber revolvers came to be known as the "Thunderer." These revolvers were made both with and without an ejector and in barrel lengths that ranged from 2 to 7 inches.

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