5col MIL-M-18371E Emergency Signalling Mirror, Mark 3, 2x3 in. – Military Issue

Overview

The 5col Survival Supply MIL-M-18371E Emergency Signalling Mirror, Mark 3, is a compact glass reflector designed to grab attention when you need it most. Brighter and more reflective than plastic counterparts, this mil-spec mirror is built to perform in varied light and weather, helping you stay visible to rescuers from greater distances. With two practical sizes and a featherweight, pocket-friendly profile, it’s the kind of tool that finds a home in pockets, vests, packs, or vehicle kits.

Why this mil-spec mirror stands out

• Glass construction delivers maximum reflectivity, yielding brighter signals compared with plastic mirrors.
• Two standard sizes: Type I (2 in. x 3 in.) and Type II (3 in. x 5 in.), with corresponding weights for easy carry.
• Berry Amendment Compliant heliograph signaling device that conforms to specified military standards.
• Designed for downed pilots, hunters, surveyors, rangers, smoke-jumpers, and wilderness professionals who rely on clear visibility in challenging conditions.
• Long-range signaling potential—signals can reach rescuers beyond what’s visible to the naked eye, even in hazy situations.
• Compact, portable design includes a lanyard for neck carry and quick access when time matters.

Who benefits

• Aviators or outdoor professionals needing reliable daytime signaling.
• Hikers and campers seeking a dependable, brightness-focused signaling tool.
• Mariners and shore-bound teams that may need a compact, bright signal device in survival kits.

In the field

Weighing a modest amount, the Mark 3 mirror nests in a pocket, vest, or pack without bulk. The included lanyard offers hands-free wear or easy neck access. When you tilt the mirror toward the sun, you can expect a bright flash of light that travels across open terrain, through light haze, or over water—an aid to getting attention in critical moments.

Key specs at a glance

• Type I: 2 in. x 3 in. mirror, 2.3 oz
• Type II: 3 in. x 5 in. mirror, 5.4 oz
• Glass mirror for enhanced reflectivity
• Military specification alignment and Berry Amendment compliance
• Portability: pocket-sized with an optional neck lanyard

Whether you’re navigating wilderness or preparing a readiness kit, this emergency signaling mirror offers a reliable glow that can help you attract attention when visibility is limited. It’s not a guarantee of rescue, but it’s a practical, well-built tool designed to support signaling needs in demanding environments.