. When you close your Encore it pushes the primer and extractor and spring in , when you open you encore the spring pushed the extractor and primer out . I got a swivel extractor and right after i got it i closed my gun WITHOUT putting it back in the upright position and ruined it and put a nick in my encore . GRRRRR That 's when i took it out a learned it was not really needed . Just another gimmick IMO .