Safety catch :
The safety catch has been designed to function only with loaded hammer, it blocks at the same time the hammer and the sear lever. Pushing the button of the catch from right to left the catch will engage the two devices, pushing from the left to the right, they will be disengaged at the same moment. This device has been studied to allow maximum speed to obtain the firing position, i. e., by simply pushing the button with the thumb of the hand holding the weapon. The location of the button is such that, an involuntary passage from the safe to the firing position is practically impossible.
With the weapon not in ready position the safety catch need not be engaged as the percussion pin is completely blocked and kept in this position by its spring without extruding into -the breech: with a round in the barrel the weapon could not fire even if the hammer should be pulled by accident