Final answer:
The AH-64D/E Apache helicopters are equipped with an M230 30mm chain machine gun, a crucial part of their armament used for close air support with high rate of fire and accuracy.
Step-by-step explanation:
The AH-64D/E armament includes a powerful 30mm chain machine gun, officially called the M230 chain gun. This weapon is mounted underneath the aircraft's fuselage and is an essential component of the Apache helicopter's arsenal. The M230 gun is capable of firing a variety of ammunition types, including high explosive dual-purpose, allowing it to engage a range of targets effectively.
The AH-64D Apache Longbow and the AH-64E Apache Guardian models boast advanced avionics and electronics, which enhance their combat capabilities. The M230 is a key feature in these helicopters, providing close air support to ground forces. Its chain-driven design enables a high rate of fire, and the gun is linked to the Apache's targeting systems for high accuracy.