Extractor
The extractor is part of the locking systems of firearms . Further names are "extractor claw" or "extractor hook".
The extractor is claw-shaped or hook-shaped and is resiliently mounted in the movable part of the locking system. The claw or hook engages in the rest state (lock locked) through a recess at the end of the chamber in the groove (edge) or edge of the cartridge case provided for this purpose, after the shot has been fired , around this when the movable part of the lock system moves backwards from the To pull cartridge chamber. The cartridge case then hits the ejector , which transports it out of the locking system and thus out of the weapon .
In the case of weapons with an unlocked spring-mass lock , the extractor may also be missing because it is not needed there. There, the gas pressure takes over the function of pushing the empty case backwards out of the chamber against the breech, thus initiating the repeating cycle.