What are the different conditions of the M9 service pistol?

The M9 service pistol, used by the U.S. military, typically comes in several conditions related to its readiness for firing. Condition 1 is when the pistol is loaded, with a round in the chamber and the safety engaged. Condition 2 is not applicable for the M9, as it does not have a hammer-drop feature; thus, it is either carried in Condition 1 or Condition 3, which is when the magazine is loaded, but there is no round in the chamber and the safety is engaged. Finally, Condition 4 indicates the pistol is completely unloaded, with no magazine inserted and no round in the chamber.