Various U.S. military units and services began fielding the ACH 2003. Lighter than the previous PASGT infantry helmet, the ACH features a pre-drilled Night Vision Goggle (NVG) bracket hole.

While the Army-issued ACH helmet offered adequate protection, the First Sergeant elected to wear a high-speed Ops-Core FAST ...

also known as the Advanced Combat Helmet (ACH). At only 3.6-pounds, the MICH/ACH has a better fit and more protection through advancements in Kevlar material. The helmet integrates communication ...