ArmorOS

Library

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

Ballistic Shields — The Complete ArmorOS Guide

The authoritative hub for ballistic shields — NIJ 0108.01 plus the new ASTM E3347 specification and E3141 test method, handheld vs standoff shields, viewport options, maintenance, and LE procurement. Source-cited across every spec.

Guide·Apr 20, 2026

ASTM E3347 — The New LE Shield Performance Specification

ASTM E3347 is the first US performance specification purpose-built for LE ballistic shields. It covers shield body, edges, viewports, fasteners, and weak points — going beyond NIJ 0108.01's panel-only scope. This guide covers what E3347 actually tests and why it's rapidly becoming a procurement requirement.

Guide·Apr 20, 2026

ASTM E3141 — The LE Shield Test Method

ASTM E3141 defines how to test ballistic LE shields — shot placement, velocity measurement, acceptance criteria — the protocol that makes E3347 compliance a defensible certification. This guide covers the test structure and what distinguishes it from NIJ 0108.01's panel-centric methodology.