How often must maintenance checks be conducted on the M777A2?

The correct choice emphasizes the importance of regular maintenance checks for the M777A2 Howitzer to ensure its reliability and operational readiness. Maintaining a schedule of every 100 rounds fired or monthly ensures that any potential mechanical issues are identified and resolved before they can lead to failures during operation.

Regular maintenance is critical, especially in environments where the howitzer may be subjected to varying conditions that can impact its systems. This preventative measure helps to prolong the life of the equipment and ensures that it remains functional and effective when needed.

Maintenance after significant combat use, annual checks, or checks based solely on the number of rounds fired may not adequately address wear and tear that could occur throughout its operational lifespan. It is crucial for units to stay vigilant with maintenance practices to uphold the performance standards expected of the M777A2.