cartridge extractor

A cartridge extractor with a latch is mounted in the rear part of the bolt carrier assembly.

Since the cartridge extractor or ejector is built into the barrel assembly on break open actions, the breech face is simply a flat plate with a hole for the firing pin to project.

In fact the corkscrew was eventually found in the same company as practically anything useful such as scissors, tooth picks, cartridge extractors and so on down to the car key ring and Swiss army knife of today.