Which part of a double action revolver is used to eject spent cartridges?

The ejector rod is the part of a double action revolver that is specifically designed to eject spent cartridges from the cylinder. When the cylinder is rotated to align the chamber with the barrel, the ejector rod can be activated, usually by pressing it to push the spent cartridges out of the cylinder chambers. This process is essential for reloading the revolver efficiently and maintaining its functionality.

The other components mentioned serve different purposes; for instance, the cylinder holds the cartridges in place while the gun is fired. The trigger guard is a safety feature designed to prevent accidental firing, and the grip is the part of the revolver that the shooter holds. Understanding the function of the ejector rod is crucial for anyone learning about double action revolvers, as it plays a key role in the reloading process after firing.