What is the nomenclature of the M252 boresight?

The correct nomenclature of the M252 boresight is M45. This device is specifically designed to ensure the mortar tube is accurately aligned for effective firing. The M252 mortar system relies on the M45 boresight as a critical part of its setup to achieve optimal precision in targeting. Understanding this nomenclature is essential for proper equipment identification and usage during mortar operations. The other options refer to different variations or incorrect designations that are not associated with the M252 boresighting system, enhancing clarity on the unique identifier of the correct boresight model.