What is one key safety precaution when using the M240?

The key safety precaution of ensuring the weapon is on safe and the chamber is clear before handling is crucial for maintaining safety while using the M240. This practice minimizes the risk of accidental discharge, which can happen if the weapon is handled when it is not in a safe condition. Having the weapon on safe indicates that the firing mechanism is disengaged, preventing it from being fired inadvertently. Additionally, checking that the chamber is clear confirms that there are no rounds present, further enhancing safety.

This procedure is a standard practice that is taught universally for firearms handling to protect the operator and others in the vicinity from potential hazards associated with mismanagement of firearms. It instills a disciplined approach to weapon handling that is vital for any operator working with military weaponry like the M240.