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Guides & Briefs

Manufacturer-neutral reference content for body armor procurement professionals. New briefs published automatically when regulatory monitoring agents detect a material change.

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.