Meprolight M21 Day/Night Self-Illuminated Reflex Sight


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Aiming Point Diameter:

The Meprolight M21 Day/Night Self-Illuminated Reflex Sight provides constant, all-light aiming capability, without the need for a battery supply. Reticle illumination on these Red Dot Sights is achieved by a protected fiber optic light during the day, and by a self-powered tritium light source at night. the Meprolight M21 Tactical Sight features a large 30mm diameter lens that provides rapid target acquisition and a quick-release Picatinny mount.

Meprolight M21 Reflex Sight Features 

  • Designed for CQC
  • FOV: Unlimited with both eyes open
  • Rapid target acquisition
  • Protected fiber optic light collection for daytime
  • Self-powered tritium light source for night
  • Reflexive, parallax-free aiming 
  • Self-illumination adjusts to ambient light
  • Reticle designed to be visible under all conditions
  • Large 30mm diameter lens with state-of-the-art coatings assures large FOV
  • Highly durable and rugged
  • Sight is black and grey, 
  • Increases accuracy and speed 
  • Quick-release Picatinny mount 

Aiming Point Diameter

 Bullseye Reticle MEP0626110 879015002787
 Open-X Reticle MEP0626610 879015004378
4.3 MOA Dot Reticle MEP0626210 879015004347
 Triangle Reticle MEP0626410 879015004361


Meprolight M21 Specs 

  • Magnification: 1 x, Fixed
  • Objective Lens Diameter: 30 mm,
  • Type: Fiber Optics/Tritium
  • Illumination Color: Red,
  • Eye Relief: 10 - 600 mm,
  • Adjustment Click Value: 1 MOA,
  • Parallax: 0.25,
  • Lens Material: Optical Glass,
  • Optical Coating: AR Coating,
  • Light Transmission: 50 %,
  • Attachment/Mount Type: Picatinny,
  • Operating Temperature: -40 - 131 Fahrenheit,
  • Water Resistant Mark: 1 m,
  • 4.48 x 2.16 x 2.75 in, with Picatinny adaptor
  • Weight: 13.12
  • Aperture: 27 mm,
  • W/E Travel at 100 Yds: +/- 35 MOA.
Warning: California's Proposition 65

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