Which safety condition is NOT applicable to the M203?

The M203 grenade launcher operates under specific safety conditions tailored to its design and function. Condition 2, which typically involves a loaded weapon with the safety on and the chamber clear, is not applicable to the M203 because the weapon does not fully align with the handling and safety protocols defined by this condition.

In essence, the M203 is designed for single-shot use, where it should be loaded only when ready to fire, and it does not allow for a condition where the chamber can be clear while the weapon remains loaded in a ready state with the safety engaged. This is crucial for preventing accidental discharges and ensuring the operator's safety while handling the weapon.

In contrast, Conditions 1, 3, and 4 are relevant to the safe operation and handling of various firearms, including the M203, by delineating clear guidelines on loading, unloading, and safe hold operations. Recognizing the specific limitations of the M203 within these conditions reinforces safe handling practices and operational readiness.