---
product_id: 804153
title: "Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel"
brand: "meprolight"
price: "Rp19371716"
currency: IDR
in_stock: true
reviews_count: 8
url: https://www.desertcart.id/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot
store_origin: ID
region: Indonesia
---

# Battery-free power Triangle reticle precision Combat-proven durability Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel

**Brand:** meprolight
**Price:** Rp19371716
**Availability:** ✅ In Stock

## Summary

> 🔺 Lock on. Stand out. Own every shot.

## Quick Answers

- **What is this?** Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel by meprolight
- **How much does it cost?** Rp19371716 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot)

## Best For

- meprolight enthusiasts

## Why This Product

- Trusted meprolight brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quick-Release Mounting:** Effortlessly swap or remove your sight with dual quick-release levers—adapt on the fly like a pro.
- • **Military-Grade Toughness:** Built like a tank and battle-tested by Israeli Special Forces—reliability you can trust under pressure.
- • **Precision Triangle Reticle:** Quick target acquisition with the sharpness of a red dot and the accuracy of iron sights for every shot.
- • **Always-On, No Batteries Needed:** Harnesses fiber optics by day and tritium by night for uninterrupted aiming—zero downtime, zero hassle.
- • **Seamless Day-to-Night Transition:** Automatic brightness adjustment ensures your reticle stays crisp from dawn patrol to dusk missions.

## Overview

The Meprolight M21 is a self-powered reflex sight featuring a unique triangle reticle, designed in collaboration with Israeli Special Forces. It requires no batteries, using fiber optics and tritium for day and night visibility. Combat-proven and built from durable aluminum, it mounts quickly on Picatinny rails with dual quick-release levers. Ideal for tactical rifles, it delivers fast target acquisition and reliable zero retention, making it a trusted choice for professionals and enthusiasts alike.

## Description

Product description

Review: Great reflex sight, built like a tank, batteries not included! (or even necessary!) - I've only used this once, but so far I'm very impressed with it. The triangle reticle offers the quick pickup of a red dot for shorter distances, with the precision of a iron sight for longer distances. I zeroed it at 100 yards using the top tip of the triangle as the point of impact. In that regard, it reminds me of an old Mauser front sight, it works quite well. Shots can be quickly placed in a center-mass sized target at 50 yards or closer by using the whole triangle as a large red-dot. This sight is built like a brick schit-house, you would probably have to go to great lengths to damage it. It's nice to not have to worry about batteries since it runs on fiber-optic in the daylight and tritium in the dark. It's also nice not to have to turn it on or off, it's always "on". The one issue that often comes up when reading reviews about the M21 is reticle wash-out. If you're in a dark place (inside a dark room for instance) and you're aiming into a bright place (out the window of the dark room into the daylight) it can wash out, depending on how bright it is outside and how dark it is inside. This really isn't a problem for me, however. I shoot at an outdoor range that has a roof over the firing line. Shooting from the shade to the bright sunlight wasn't a problem at all, the reticle was bright and crisp. About the only bad things I can say about this sight are the slight possibility of reticle washout and it's weight, it is heavy at nearly a pound. But these aren't very big problems to me, I feel the positives far outweigh the negatives of this sight. This is a fantastic relfex sight for the AR platform, and would be right at home on many other tactical-type rifle platforms as well.
Review: Excellent Sight - Haven't had a chance to try this unit out yet since I received it, but it seems to operate as well. The triangular reticule is much small than I thought and actually looks more like a dot. Nicely made, appears very sturdy since the body is mostly aluminum. Adapter works very well and makes taking this sight on and off very quick and easy. Will update as soon as possible. ** Aug 2013 ** OK, so I finally was able to test this sight our since I was able to acquire ammunition for my AR's (5.56 & 300 BLK). Keeping in mind that I am limited to an indoor range with a maximum 25 yard distance, I was very impressed with this sight. At that range, I was able to keep my shots clustered in a group of about 5" to 6" in diameter while rapid firing .... basically using a life size body shaped target, all rounds were kept dead center in the center of the torso where I had the triangle placed. My friend was impressed enough that he is thinking of buying on as well. Yes, there is a slight issue with washout when transitioning from a dimly lit to brightly lit area (for the target), but the triangle was still visible enough to allow me to keep 100% of my shots in the center mass of a human sized torso. ** Sept 2013 ** After working with this sight more on my various rifles & pistols, I have found it to be very accurate and has maintained zero perfectly when swapped between 5 different guns. Also it perfectly co-witnesses with my Troy Battle Sights. At nearly half the cost of a Trijicon SRS that I was considering, I plan to purchase several more for each of my rifles in the near future. My only gripes with this sight are: 1. No option to allow user to change reticle pattern or size 2. No option to change reticle color (reddish orange can be difficult to see on some surfaces) But that is all part of K.I.S.S. so have to make do with these limitations

## Features

- All-light aiming capability without batteries
- Designed through close collaboration with Israeli Special Forces
- Combat proven- Standard sight of the Israeli Military
- Includes mounting base with 2 quick release levers
- Triangle Reticle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004O6GFQE |
| Best Sellers Rank | #188,992 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #382 in Rifle Scopes |
| Brand | Meprolight |
| Brand Name | Meprolight |
| Color | Black |
| Compatible Devices | Picatinny Mount |
| Customer Reviews | 4.6 out of 5 stars 427 Reviews |
| Global Trade Identification Number | 00879015004361 |
| Included Components | SIght |
| Item Display Dimensions | 6.63 x 5 x 2.88 inches |
| Item Display Weight | 1.25 Pounds |
| Item Type Name | MEPRO M21 |
| Item Weight | 1.35 Pounds |
| Lens Color | Black |
| Magnification Minimum | 1 x |
| Manufacturer | Meprolight |
| Manufacturer Part Number | Mepro M21-T |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Name | Mepro M21 Triangle |
| Model Number | Mepro M21-T |
| Mounting Type | Picatinny Mount |
| Night vision | Yes |
| Objective Lens Diameter | 30 Millimeters |
| Product Style | Triangle |
| Reticle Type | Triangle |
| Sport | Airsoft |
| Sport Type | Airsoft |
| Style | Triangle |
| Thread Type | Picatinny |
| UPC | 879015004361 796793861804 669439365427 |
| Unit Count | 1.00 Ounce |
| Warranty Description | 5 years for material and workmanship, 10 years for tritium luminance |

## Product Details

- **Brand:** Meprolight
- **Color:** Triangle
- **Style:** Triangle
- **Sport:** Airsoft
- **Item Weight:** 0.85 Pounds
- **Material:** Aluminum
- **Objective Lens Diameter:** 30 Millimeters
- **Magnification Minimum:** 1 x
- **Compatible Devices:** Picatinny Mount
- **Mounting Type:** Picatinny Mount

## Images

![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 1](https://m.media-amazon.com/images/I/71xlfAWlpAS.jpg)
![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 2](https://m.media-amazon.com/images/I/710VVgop-8L.jpg)
![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 3](https://m.media-amazon.com/images/I/613TFzr3IzL.jpg)
![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 4](https://m.media-amazon.com/images/I/81MjovThHBL.jpg)
![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 5](https://m.media-amazon.com/images/I/71AZzmgRk6L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is there an ard (anti-radiation device, i.e. killflash) available for this?**
A: The kill flash (ARD) is not included in the box unless it specifically states it is.

**Q: I ordered one of your sites and my question is this, am I supposed to be seeing double triangles?  No matter what time of day it is?**
A: Absolutely not.  Make sure that your line of sight is inline with the scope and not shifted to a side.  Also do not focus on the triangle, focus on the target itself.  If that doesn't work the sight could simply be defective.  Don't get discouraged with the product, when functioning properly it is hands down one of the best out there.  Hope this helps..  Michael

**Q: For the dot-in-circle reticle, my understanding is that the circle is 5 moa. what is the dot size in moa?**
A: I believe the thick outer ring of the bullseye circle is 15moa, with the inner dot being 4.5moa.

**Q: How long does the tritium last and is it replaceable? If so, how much does that cost?**
A: Mepro claims 12 years but in my experience you can expect 9 to 10 years of life from the tritium vial. Yes, you can send it in to Mepro for replacement. I can't tell you how much it costs or what turnaround time is though.If you buy this optic get the 4.3 MOA dot. Don't get any of the other reticles. They are too big.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great reflex sight, built like a tank, batteries not included! (or even necessary!)
*by S***D on May 25, 2015*

I've only used this once, but so far I'm very impressed with it. The triangle reticle offers the quick pickup of a red dot for shorter distances, with the precision of a iron sight for longer distances. I zeroed it at 100 yards using the top tip of the triangle as the point of impact. In that regard, it reminds me of an old Mauser front sight, it works quite well. Shots can be quickly placed in a center-mass sized target at 50 yards or closer by using the whole triangle as a large red-dot. This sight is built like a brick schit-house, you would probably have to go to great lengths to damage it. It's nice to not have to worry about batteries since it runs on fiber-optic in the daylight and tritium in the dark. It's also nice not to have to turn it on or off, it's always "on". The one issue that often comes up when reading reviews about the M21 is reticle wash-out. If you're in a dark place (inside a dark room for instance) and you're aiming into a bright place (out the window of the dark room into the daylight) it can wash out, depending on how bright it is outside and how dark it is inside. This really isn't a problem for me, however. I shoot at an outdoor range that has a roof over the firing line. Shooting from the shade to the bright sunlight wasn't a problem at all, the reticle was bright and crisp. About the only bad things I can say about this sight are the slight possibility of reticle washout and it's weight, it is heavy at nearly a pound. But these aren't very big problems to me, I feel the positives far outweigh the negatives of this sight. This is a fantastic relfex sight for the AR platform, and would be right at home on many other tactical-type rifle platforms as well.

### ⭐⭐⭐⭐⭐ Excellent Sight
*by H***Y on July 3, 2013*

Haven't had a chance to try this unit out yet since I received it, but it seems to operate as well. The triangular reticule is much small than I thought and actually looks more like a dot. Nicely made, appears very sturdy since the body is mostly aluminum. Adapter works very well and makes taking this sight on and off very quick and easy. Will update as soon as possible. ** Aug 2013 ** OK, so I finally was able to test this sight our since I was able to acquire ammunition for my AR's (5.56 & 300 BLK). Keeping in mind that I am limited to an indoor range with a maximum 25 yard distance, I was very impressed with this sight. At that range, I was able to keep my shots clustered in a group of about 5" to 6" in diameter while rapid firing .... basically using a life size body shaped target, all rounds were kept dead center in the center of the torso where I had the triangle placed. My friend was impressed enough that he is thinking of buying on as well. Yes, there is a slight issue with washout when transitioning from a dimly lit to brightly lit area (for the target), but the triangle was still visible enough to allow me to keep 100% of my shots in the center mass of a human sized torso. ** Sept 2013 ** After working with this sight more on my various rifles & pistols, I have found it to be very accurate and has maintained zero perfectly when swapped between 5 different guns. Also it perfectly co-witnesses with my Troy Battle Sights. At nearly half the cost of a Trijicon SRS that I was considering, I plan to purchase several more for each of my rifles in the near future. My only gripes with this sight are: 1. No option to allow user to change reticle pattern or size 2. No option to change reticle color (reddish orange can be difficult to see on some surfaces) But that is all part of K.I.S.S. so have to make do with these limitations

### ⭐⭐⭐⭐⭐ Simply awesome
*by J***H on May 13, 2013*

My mission was to build an effective, durable, and rugged battle rifle. The Mepro 21 is not only the first Mako product that I've actually been satisfied with, but it has exceeded my expectations for a battery-less holographic sight. I've read a few reviews on this product and have seen some people complaining about the way it looks mounted on their rifles. Not only does it do the job, but, aesthetically, it is pleasing as well. It's not that heavy. The quick attach levers worked perfectly and gave it a snug and secure fit on my rifle's rails. Low Light Test: I blacked out my room completely and could still see the optical just fine. Bright Light Test: On a sunny and abnormally warm day I saw the optical with ease. Also, it's cheaper than an EOtech. And guess what? No more batteries either. This sight is the real deal. My one complaint is that the optical can be lightly blurred at times. I attribute this to the light level. It seems to struggle when looking through rooms with different light levels. For example, while sitting in a dark room and attempting to focus the sight on a target in another room that was well lit, I experienced a bit of fading with the optical. While it wasn't impossible to see the optical, the fading was definitely noticeable. This technology is still relatively new, so I expect that Mako will eventually find a solution to this minor bug.

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-07-03*