What is the caliber of the M16A2 service rifle?

The M16A2 service rifle is designed to fire the 5.56 mm cartridge, which is a standard caliber for many modern military rifles. This caliber is specifically optimized for high velocity and low recoil, allowing for greater accuracy during rapid fire. The 5.56 mm round is lightweight, which contributes to the overall effectiveness of the M16A2 as a versatile infantry weapon capable of precision shooting and sustained fire.

Understanding the caliber is essential not only for operational readiness but also for logistics, as it impacts the type of ammunition that can be used and how it integrates with the infantry's tactics and equipment. Therefore, recognizing the M16A2's use of the 5.56 mm round is crucial for anyone involved in military operations or training programs related to the Fleet Marine Force.