The Advanced Combat Helmet (ACH) is a modular system that weighs less, fits better, and is more comfortable than its predecessor, the PASGT helmet.

The Enhanced Combat Helmet (ECH) was developed in response to a 2009 USON to produce a helmet that providesballistic protection from selected small arms ammunition andfragmentation, yet maintains all other characteristics of the Marine Corps' Lightweight Helmet (LWH) and the Army's Advanced Combat Helmet (ACH).

The Lightweight Helmet (LWH) replaces the PASGT helmet.The LWH provides protection in various operating environments from fragmentation and 9mm small arms projectiles.

The Modular Integrated Communications Helmet (MICH) began development in 1997 as part of the Special Operations Forces Personal Equipment Advanced Requirements program at the U.S. Special Operations Command. The MICH provides the Special Operations Forces the flexibility to tailor the communications capability of the helmet to the mission using one modular system.