The Trigger Guard is a loop around the trigger to protect it from being damaged, bumped or snagged and pulied. It also helps remind you that putting your linger on the trigger should be intentional.
The safety introduces a positive barrier in front of the hammer. This will prevent the firing pin in the hammer from striking the primer in the cartridge until the trigger is squeezed and held back. In this way, if the hammer is being cocked and it slips from your thumb, or if the revolver is dropped on the hammer spur, the revolver will not fir© provided the trigger is not in the firing position.
To allow the revolver to fire, the safety is withdrawn when the hammer is cocked and will remain withdrawn if the trigger is squeezed and held in the firing position. However, if the trigger is released when the hammer is not fully cocked, the safety will return to prevent the hammer from falling fully forward so that the firing pin cannot strike the primer to fire the
Another function of the safety is to lock the cylinder latch when the hammer is cocked; in this way the cylinder cannot be moved out of or into the revolver frame. This insures that the hammer is forward while loading and unloading to minimize the risk of accidental discharge.
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