Guide·Apr 20, 2026
ACH-GEN-II — The Military Helmet Spec LE Actually Cares About
ACH-GEN-II is the US Army's performance specification for Advanced Combat Helmet and its derivatives. It covers fragmentation V50, 9mm V50, backface deformation, and retention — a tougher spec than NIJ 0106. This guide covers what it specifies and why LE agencies increasingly require it.