To what action should the safety be placed when preparing for a function check of the M240?

When preparing for a function check of the M240, the safety should be placed in the "S" (Safe) position. This is crucial because it ensures that the weapon cannot accidentally discharge during the check. Safety protocols dictate that all weapons must be handled with the utmost caution, and placing the safety in the "Safe" position is a fundamental step in preventing accidental firings.

Safety checks are routine and ensure the weapon operates correctly without placing anyone at risk. The "Safe" position effectively blocks the trigger mechanism, providing peace of mind that the weapon is secure before any further inspections or checks are performed. This standard procedure aligns with best practices for weapon handling in any military or tactical situation, prioritizing the wellbeing of personnel and safety of operations.