Which of the following statements about the M16A2E3 rifle is true?

The M16A2E3 rifle's capability for semi-automatic and automatic fire is a defining characteristic, establishing it as a versatile weapon suitable for various combat scenarios. The semi-automatic mode allows the shooter to fire one round each time the trigger is pulled, while the automatic mode enables a continuous discharge of rounds as long as the trigger is held down. This dual functionality is key for adaptable combat strategies, providing a balanced choice between precise shots and sustained fire when necessary.

In contrast, other statements do not accurately reflect the M16A2E3's specifications. For instance, the rifle does not fire .45 caliber rounds; instead, it utilizes 5.56x45mm NATO ammunition, which is significantly smaller. The maximum effective firing range of the M16A2E3 is typically about 550 to 600 meters, but the distinction in terminology can sometimes lead to confusion. Furthermore, the weapon features a detachable magazine rather than a fixed one, allowing for quicker reloading during combat situations. Understanding these attributes underscores the M16A2E3's role as a reliable infantry weapon in the field.