Which statement describes revolvers?

• A. Having multiple chambers around an axis
• B. Detachable magazine behind the grip
• C. Uses a pumping action
• D. Is always semi-automatic

Answer: (A)

Revolvers are defined by a rotating cylinder that has multiple chambers arranged around a central axis. Each chamber holds one cartridge. When you cock the hammer or pull the trigger, the cylinder rotates to bring the next loaded chamber in line with the barrel, and the hammer releases to fire that cartridge. This revolving cylinder is the defining feature that sets revolvers apart from other pistol designs.

The other descriptions describe different firearm mechanisms. A detachable magazine behind the grip is characteristic of many magazine-fed pistols, not revolvers. A pumping action is typical of pump-action firearms like some shotguns, not revolvers. And revolvers are not always semi-automatic; in fact, they are not semi-automatic at all—their operation funnels one round per trigger pull, with the next round ready in the cylinder rather than automatically feeding from a magazine.