Which component is NOT part of the M224, 60-mm mortar?

The M224, 60-mm mortar system is a lightweight, portable mortar used primarily by infantry forces. It is comprised of several key components that work together to facilitate its operation effectively. The correct choice in this case is the baseplate M7 or M8, as these components are not part of the M224 mortar system.

The M224 mortar uses a specific baseplate, known as the M17 baseplate, which is designed to provide stability and support for the mortar during firing. The M17 baseplate is integral to how the mortar is set up and fired, ensuring proper alignment and absorption of recoil. The other components mentioned, such as the cannon assembly M225 and the bipod assembly M170, are indeed part of the M224 configuration. Therefore, recognizing the M17 baseplate as the accurate component associated with the M224 mortar helps in understanding the overall structure and functionality of this particular piece of equipment in infantry operations.