Which component of a revolver is described as housing the extractor rod and containing the cartridge chambers?

• A. Frame
• B. Cylinder
• C. Barrel
• D. Grip

Answer: (B)

The cylinder is the part that both holds the cartridge chambers and works with the ejector/extractor to remove spent cases. In a revolver, rounds are loaded into the individual chambers around the cylinder’s axis, and the cylinder rotates to bring each chamber in line with the barrel for firing. The extractor/ejector assembly is tied to this same area, so it can push spent cases out of the chambers after firing. The frame, barrel, and grip have different roles—the frame houses the action, the barrel provides the firing bore, and the grip is for handling. So, the description fits the cylinder, since it is the component that contains the cartridge chambers and interfaces with the extractor/ejector mechanism.