Double-action Revolver

The Double-Action Revolver is a weapon in Red Dead Redemption. Unlike single-action revolvers, the double-action revolver will cock the hammer, fire a round, and advance the cylinder with one pull of the trigger. The major drawback of this is a reduction in accuracy, due to increased trigger pressure.

The Double-Action Revolver can be found in the Tesoro Azul gang hideout. After completing the hideout, search a chest across from the room where the man was held hostage, and you will receive the revolver.

Trivia

 * The Double-Action Revolver is based on the Colt Police Positive.

Achievements
The can be used to unlock the following achievements:
 * In a Hail of Bullets: Kill 500 enemies with any pistol or revolver in any game mode.
 * Bullseye: Get 250 headshots in any game mode.
 * The Gunslinger: Get a headshot while in Expert Mode in Single Player.