Meprolight M21 Red Dot Sight 1x30mm 5.5 MOA Black Self-Illuminated

The Meprolight M21 red dot sight delivers tritium-powered illumination that operates without batteries for over 12 years. This self-illuminated optic provides instant target acquisition in any lighting condition, from bright daylight to complete darkness.

What Makes This Different

Unlike battery-dependent red dots, the M21 uses tritium gas and fiber optic technology for automatic brightness adjustment. The sight brightens in daylight conditions through fiber optic collection and maintains visibility in darkness through tritium illumination. This dual-illumination system eliminates battery failure concerns during critical moments. The 5.5 MOA dot size provides rapid target acquisition while maintaining precision for shots out to 200 yards.

Key Features

• Self-illuminated tritium and fiber optic system - no batteries required
• 5.5 MOA red dot optimized for close to medium range engagements
• 30mm objective lens with 1x magnification for both-eyes-open shooting
• Unlimited eye relief and wide field of view
• Waterproof to 10 meters and shockproof construction
• Compatible with standard 30mm scope rings and mounts
• Aircraft-grade aluminum housing with matte black finish

The M21 performs consistently across temperature extremes from -40°F to 140°F without point-of-impact shift. Law enforcement agencies rely on this optic for duty weapons where battery failure is not acceptable. The sight maintains zero through thousands of rounds and handles recoil from magnum calibers. Hunters appreciate the automatic brightness adjustment that adapts from shadowy timber to open fields without manual controls.

Technical Specs

• Magnification: 1x with 5.5 MOA red dot reticle
• Objective lens diameter: 30mm
• Eye relief: Unlimited
• Field of view: Wide angle, both-eyes-open compatible
• Housing material: Aircraft-grade aluminum, matte black finish
• Mounting: Standard 30mm scope rings (not included)
• Operating temperature: -40°F to 140°F
• Waterproof rating: 10 meters depth
• Tritium life: 12+ years guaranteed illumination
• Country of origin: Israel

The M21 represents proven technology trusted by military and law enforcement worldwide. Its maintenance-free operation and consistent performance make it ideal for serious shooters who demand reliability. This sight ships ready to mount and zero, backed by Meprolight's reputation for quality optics.