A double action trigger is a mechanism used in firearms that allows the user to cock and fire the gun in one motion. This type of trigger is typically found on semi-automatic pistols and revolvers.
Double action triggers can be used for self-defense or target shooting.
When used for self-defense, the double action trigger allows the user to keep their finger off the trigger until they are ready to shoot. This can help prevent the unintentional discharge of the firearm.
Target shooters often prefer double action triggers because they allow for a more consistent trigger pull, which can improve accuracy.