What is the name of the armed remotely piloted aircraft that functions as close air support at the Division echelon?

The MQ-1C Gray Eagle is specifically designed to provide close air support at the Division echelon, fulfilling a crucial role in modern military operations. This platform is differentiated by its ability to execute reconnaissance, surveillance, and target acquisition while also being armed, enabling it to engage enemy targets effectively.

The MQ-1C Gray Eagle is equipped with advanced sensors and weaponry, making it versatile in battlefield scenarios where real-time intelligence and immediate fire support are critical. This capability allows ground forces to receive aerial support without the need for immediate manned aircraft deployment, enhancing operational flexibility and mission effectiveness.

While the other options are noteworthy in their respective domains, they do not serve the same function as the Gray Eagle. CPOF refers to Command Post of the Future, a decision-support system rather than an aircraft. Guardrail is a system used for intelligence and surveillance, lacking the armed capability necessary for close air support. The U-2 Dragon Lady is primarily an intelligence, surveillance, and reconnaissance aircraft, and while it has historical combat functions, it does not operate at the Division echelon in the same capacity as the Gray Eagle. Thus, the MQ-1C Gray Eagle remains the best answer due to its specific design and operational role.