Meprolight M21 5.5 MOA Open X Day/Night Tritium Illum Reflex Sight w/Picatinny Rail Adapter 0626610

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Mepro takes red dot sights to the next level with the M21! This advanced sight was developed for the IDF, and is highly suited for close-quarters or in situations where the use of both eyes is critical. The M21 functions without batteries, and provides illumination with a system of fiber optics and tritium. The fiber optic collectors on the top and front of the sight illuminate the reticle in daylight conditions, while the self-powered tritium illuminates the reticle in the dark. Transition between the two illumination systems is seamless, and is always available without any switches or external sources of power. In addition, the M21 is available in the following reticles: Bullseye, Triangle, Open X, or a dot reticle in either 4.3 MOA or 5.5 MOA.

Features of the M21 Red Dot Sight:

  • Functions without batteries
  • Self-illuminated via system of fiber optic collectors and tritium
  • Available reticles: Bullseye, Triangle, Open X, or a dot reticle in either 4.3 MOA or 5.5 MOA.
  • No switches or external sources of power


ModelMeprolight M21
Weight:13.12 oz
Length4.48 inches
Magnification Range:1x
Reticle Size5.5 MOA
Reticle ColorAmber
Adjustment Graduation1 MOA
Night Vision CompatibleYes
Brightness SettingsFixed
Battery Type:Tritium & Fiber Optics
Item Condition:New
Product TypeShop All Reflex
BrandShop All Meprolight
Date First AvailableAugust 06, 2021
Last UpdatedMay 10, 2024

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