What condition code does not apply to the M9 service pistol?

The M9 service pistol, like other firearms, is categorized into specific condition codes that describe its operational status. Condition 1 indicates that the firearm is loaded and has a round chambered, with the safety engaged. Condition 2 refers to a loaded magazine with a round in the chamber and the hammer down, which is not a practice typically applied to the M9 since it does not have a de-cocking feature for single-action operation. Condition 3 signifies that the pistol has a loaded magazine inserted, but no round in the chamber, which is a commonly practiced state for the M9 when it is holstered and not in immediate use. Condition 4 indicates that the magazine is removed, and there is no round in the chamber, presenting the safest state for the firearm when not in use.

Condition 2 is not applicable to the M9 service pistol's operation due to the specific design and safety features of the weapon. The M9’s design does not include a mechanism to allow safe handling in a Condition 2 state as pertaining to its intended military use, making it impractical and thus not recognized as a valid operational condition. This understanding of the M9's functionality reinforces the designation of Condition 2 as the state that does not apply