In a semi-automatic pistol, what is the primary function of the extractor?

• A. Firing pin
• B. Magazine release
• C. Extractor
• D. Sear

Answer: (C)

The extractor grips the rim of the spent cartridge and pulls the case out of the chamber as the slide moves rearward during the firing cycle. This extraction, coordinated with the ejector, sends the spent case out through the ejection port and makes room for the next round to be chambered when the slide returns forward. This cycling is essential for a semi-automatic pistol to function reliably—the firearm must remove the spent case and then chamber a new round for the next shot. The other parts mentioned serve different roles: the firing pin ignites the primer, the magazine release frees the magazine, and the sear controls the trigger/hammer engagement.