What is the magazine round capacity of an M16A2 service rifle?

The magazine round capacity of an M16A2 service rifle is 30 rounds. This standard capacity allows for a balance between firepower and weight, ensuring that Marines can efficiently engage targets while maintaining ammunition supply management. The 30-round magazine is designed to fit securely within the rifle's well and is widely used across various military operations, providing a sustained rate of fire when needed. The design also facilitates quick reloading and operational flexibility during combat scenarios. This configuration aligns with the intended use of the M16A2 in infantry and combat situations, where effective suppressive and aimed fire are crucial.