Meprolight M21 Triangle Reflex Sight with Quick Disconnect

Combat-Proven Reflex Sight Technology

The Meprolight M21 represents decades of refinement in self-illuminated optics, originally developed for and still in active service with the Israeli Defense Force. This is a sight designed by professionals who understand that reliability under stress isn't optional—it's mandatory.

How It Works

The M21 employs a dual-illumination system that requires no batteries, no switches, and no external power source:

• Daytime: Fiber-optic collectors gather ambient light to illuminate your reticle
• Nighttime: A miniature tritium light source automatically takes over, providing consistent visibility in complete darkness

This elegant design means your sight is always ready, always on, always capable.

Optical Performance

Large 30mm lens provides an expansive field of view, allowing you to maintain situational awareness with both eyes open—a critical advantage in dynamic shooting situations. The triangle reticle offers a distinct aiming point that's easy to acquire quickly.

The sight is compatible with night vision devices, including modern GEN III tubes, and works seamlessly alongside magnifying scopes like the Meprolight MX3F/T without compromising your field of view or ease of operation.

Built for the Real World

Meprolight's construction meets or exceeds MIL-STD-810 standards. This isn't marketing language—it means the sight has been tested and proven in actual military and law enforcement service worldwide. It will function reliably in extreme temperatures, high humidity, sand, mud, and conditions that would disable lesser optics.

Quick Disconnect Mount

The integrated quick disconnect allows rapid mounting and removal without tools, making this sight adaptable to your evolving tactical needs.