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Meprolight

Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel

  • Based on 39 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Sep 1
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Style: Open X


Features

  • Fits Standard Picatinny rail.

Description

MEPROLIGHT is the premier manufacturer and global supplier of self-illuminated/Illuminated sights and top-grade Electro-optical and Optical Sights, Night Vision, and thermal sights and devices to leading commercial/civilian markets customers worldwide since. For over three decades, MEPROLIGHT is the world’s leading supplier of self-illuminated/Illuminated aiming solutions for US and European leading Manufacturers. Meprolight products undergo rigorous testing and are known for their durability, precision, and enhanced target acquisition. Used and trusted by militaries, law enforcement, and consumers worldwide. Since its inception, Meprolight produced and delivered over 36 million sights and devices to worldwide loyal customer base. MEPROLIGHT, EVERYTHING YOU AIM FOR The MEPRO M21 dual illumination system uses ambient light when it's available during daylight, and tritium light source system that ensure bright reticle in lowlight and night time. Transition between the two systems is instantaneous and automatic and enables clear visibility of the reticle in any lighting condition.

Brand: Meprolight


Color: Black


Style: Open X


Product Dimensions: 4.48"L x 2.16"W x 2.75"H


Sport: Airsoft


Item Weight: 1.2 pounds


Material: Aluminum


Magnification Maximum: 1


Objective Lens Diameter: 30 millimeters


Magnification Minimum: 1 x


Magnification Maximum: 1


Objective Lens Diameter: 30 millimeters


Magnification Minimum: 1 x


Compatible Devices: Picatinny Mount


Mounting Type: Picatinny Mount


Eye Relief: 6.5 centimeters


Reticle Type: X


Item Dimensions L x W x H: 4.48"L x 2.16"W x 2.75"H


Item Weight: 1.2 pounds


Item Display Weight: 1.3 pounds


Item Display Dimensions: 6 x 5 x 3 inches


Color: Black


Product Style: Open X


Material Type: Aluminum


Brand Name: Meprolight


Sport Type: Airsoft


Model Name: MEPRO M21 X


Manufacturer: Meprolight


Unit Count: 1 Count


UPC: 879015004378 796793861811 669278967301


Global Trade Identification Number: 78


Included Components: Mepro M21-X


Item Type Name: Meprolight Self-Powered Day/Night Reflex Sight with Dust Cover - "X" Reticle - not include the killflash


Model Number: Mepro M21


Manufacturer Part Number: 0626610


Warranty Description: 5 years for material and workmanship, 10 years for tritium luminance


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • BEST. SIGHT. EVER. 'NUFF SAID
Style: Open X
I now have five of the MEPROLIGHT M21s (with various reticles), mounted on AR15 type firearms. They are the best 1X reflex sight you can buy (especially at this price point). I especially like the "X" reticle (my 2nd one of those)...it has an opening where the arms of the X cross over. It makes a perfect aiming point. These things are as tough as tanks and 100% reliable. One thing I recommend is purchasing the MAKO GROUP washout remover when you buy the sight. Because the sight uses a light gathering source, if you are aiming from a dark area (say indoors) out into a brightly lit area, the reticle becomes a bit faded. The new available battery-powered light source installs on the side of the optic and provides light in that situation. If the Israelis use it, it has to be the best! An update - I have now gotten the M21 (#5 overall of my M21s) with a Triangle Reticle to put on an old COLT AR15 with a carry handle, It fits perfectly into the handle and only need 2 rounds to be dead on target. GREAT PRODUCT from Israel. ... show more
Reviewed in the United States on February 19, 2020 by Matt W.
    • Absolutely fantastic sight. The Israelis sure know how to built ...
Style: Open X
Absolutely fantastic sight. The Israelis sure know how to built a great sight. I chose the open X reticle so my target wouldn't be obsobscured by a dot. Achieves minute-of-man accuracy which is all I was concerned about. Bright in the day and night and 15 years without batteries is a plus. The QD mount is solid and retains zero every time. The reticle only gets drowned out when pointed directly at a source of light. ... show more
Reviewed in the United States on October 14, 2014 by Matthew K
    • Great Optic - Little Known
Style: Open X
Wonderful optic, tough as nails. Never needs a battery. Works great under 95% of circumstances. Only get washout when using in dark environment and target in very bright place. Like Open X best since it has the best overall utility.
Reviewed in the United States on April 28, 2021 by As I See It today
    • Love this Optic!
Style: Open X
This is a high quality, well designed optic. I love that you can use it up close with both eyes open, or use a magnifier with it. The only draw back, like many others have stated, is when you are standing in a darker area looking out at something brighter. The sight becomes washed out. I have read where others have added a small LED light to alleviate this problem though. When I very first looked through the sight, I was indoors and close to a wall and the cross hairs seems to be blurry. Took me a while to discover that I was trying to focus my eye on the cross hairs and not at the wall. This type of optic requires you to look 'through' the lens at your target, not at the cross hair. Once I figured that out, the cross hairs became crystal clear. ... show more
Reviewed in the United States on October 28, 2016 by Brian McMillon
    • A must have for a tavor for an ar-15 go for a aimpoint or EO tech instead for this price point.
Style: Open X
I have had this reflex sight on my tavor for 2 years and it is as bight as it was the day I got it. The open x is great for target shooting and is very clear when you have the right amount eye relief. It is a very durable optic with no noticeable change in zero. The finish is very durable and does not scratch easily. there is a slight blue tint to the glass. It is easy to pick up quickly and is a must have for any Tavor rifle it completes it. Pros: - Durable. - Good reticle. - Good image quality. - Mounts very solid to the rifle feels like it is a part of it. - QD mounts. Cons: - Blue ting is a little much for something at its price point. - Did not find and anti reflective device for it. ... show more
Reviewed in the United States on August 28, 2015 by Kyle Lawrence Sherrer
    • Those Isrealies Know Their Stuff.
Style: Open X
Wanted this for a while to slap on something that will be used for SHTF situations. Combat proven. No need for a battery when the crosshair is tritium. Does have the dreaded from a darker to lighter place reticle wash out. Purchesd a fiber optic side mount light to alleviate that.
Reviewed in the United States on January 6, 2026 by Jon
    • Aim point or EO tech probably better option
Style: Open X
Larger than expected battery free tritium filled Amber dot sight easy to see in pitch black environment but very hard to see in dim light and only average visibility in bright light. If using this sight in an environment with changes in lighting it becomes difficult to get on target due to what is basically the drastic change in reticle visibility. ... show more
Reviewed in the United States on March 15, 2015 by Mike
    • Can't say enough....
Style: Open X
I've never owned an Eotech or Leopold or any of the other over priced reticles or red dots so i don't have a lot to compare it to. All i can say is that this reticle is an absolute pleasure for target acquisition at the range. The open X does not obscure the target and does not bleach out in high light. Are the other red dots or reticles better than this one? I cannot say, but this Meprolight is so nice to shoot with, i've moved it from new rifle to new rifle because it i look forward to using the optic almost as much as shooting a new rifle. ... show more
Reviewed in the United States on February 19, 2015 by Benjamin David

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