D acts. When the pistol is discharged the barrel recoils a short distance, during which a projection on the locking piece C is drawn down into a recess in the block CI by the action of the mainspring D, and the breech bolt is thereby unlocked. The barrel then stops, but the breech bolt B continues to recoil, cocking the hammer Dl, opening the breech, extracting the spent cartridge, and allowing a fresh cartridge to rise from the magazine B1 into line with the breech bolt. The reaction of the breech bolt spring carries the bolt forward again to load the weapon and close the breech."
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