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The extractor spring fits inside the extractor channel in the slide and provides rebound pressure to the extractor.

The catch spring is mounted into the rear of the trigger housing and provides rebound pressure to the catch/sear.

The slide release spring is mounted inside the trigger housing and provides rebound pressure to the slide release.

The trigger return spring is mounted in to the center of the trigger and provides both resistance during the trigger pull and rebound pressure during the reset

The magazine catch spring is moutned into the magazine catch and then into the grip frame and provides rebound pressure to the magazine catch.

The firing pin safety spring is moutned into the firing pin safety in the rear of the slide and provides rebound pressure to the firing pin safety.