cartridge remover

English Thesaurus

1. a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector (noun.artifact)

hypernym	:	mechanism,
definition	:	device consisting of a piece of machinery; has moving parts that perform some function (noun.artifact)

part meronym	:	gun,
definition	:	a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) (noun.artifact)