What is the nomenclature of a primer used in the M777A2 Howitzer?

The nomenclature of a primer used in the M777A2 Howitzer is M82. The M82 primer is a standard component that initiates the propellant in artillery shells, allowing for the safe and efficient firing of the weapon. It is specifically designed to work within the operational parameters of howitzers like the M777A2, ensuring reliability and performance under combat conditions.

The other options represent different types of ordnance or components that do not apply to the M777A2 Howitzer. For example, M100 and M203 refer to different types of munitions and artillery systems, while M107 typically denotes specific projectile designs or other weapons systems. Understanding the specific nomenclature, such as M82, is crucial as it reflects the established standards and operational effectiveness of the artillery system in use.