Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel
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Availability:
15 left in stock
Arrives
Sep 2 – Sep 4
Style: Triangle
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
Brand: Meprolight
Color: Black
Style: Triangle
Sport: Airsoft
Item Weight: 1.4 pounds
Material: Aluminum
Objective Lens Diameter: 30 millimeters
Magnification Minimum: 1 x
Compatible Devices: Picatinny Mount
Mounting Type: Picatinny Mount
Objective Lens Diameter: 30 millimeters
Magnification Minimum: 1 x
Compatible Devices: Picatinny Mount
Mounting Type: Picatinny Mount
Thread Type: Picatinny
Reticle Type: Triangle
Item Weight: 1.4 pounds
Item Display Weight: 1.3 pounds
Item Display Dimensions: 6.63 x 5 x 2.88 inches
Color: Black
Product Style: Triangle
Lens Color: Black
Material Type: Aluminum
Brand Name: Meprolight
Sport Type: Airsoft
Model Name: Mepro M21 Triangle
Manufacturer: Meprolight
Unit Count: 1 Ounce
UPC: 879015004361 796793861804 669439365427
Global Trade Identification Number: 61
Included Components: SIght
Item Type Name: MEPRO M21
Model Number: Mepro M21-T
Manufacturer Part Number: Mepro M21-T
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:
Sep 2 – Sep 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: Triangle
I've used an Aimpoint Comp ML2 on my Springfield Socom 16 for a few years now, but have been looking for a 1x optic that will allow me to shoot more accurately out to 200+ yards. I read about Meprolight's 12 moa triangle reticle and decided to try it out. I am very impressed by this scope. Triangle is clear and sharp, no visual artifacts. By placing target on the tip of the triangle I've been shooting well, out to 200+ yards. Windage and elevation adjustments are 1 moa, firm clicks, easy to use. The viewing window is large and allows for both-eyes-open shooting. The glass is tinted a gentle green, which both accentuates the orange triangle and is restful to the eye. I like the sight picture better than my Aimpoint. Before purchasing, I read reviews that mentioned the possibility of "reticle washout." I shoot at a gun range where the benches are in a very shaded spot, and shooting out into bright sunshine has worked perfectly well. If you aim into a Very bright light, of course you lose reticle intensity, but that holds true for all red dots. Optic is well made, rugged, comes with quick release mount (easily adjusted), no batteries needed - I love it. Highly recommend. Comes with a neoprene cover. And it's fully half the price of a new Trijicon reflex sight. Note: In order for this optic to fit on my Springfield Socom 16, I needed to modify the scout rail. For the M21 quick release mount to fit, I had to file off the ridge on the scout rail closest to the muzzle. Not a problem; the scout mount is aluminum and easy to file. It does not interfere with attaching other optics including my Aimpoint. The M21's rear bolt fits in the notch just behind the blank in the middle of the scout scope rail, and the forward bolt fits in the space cleared by filing off the foremost ridge.Hope this is helpful to those who own a Socom 16.
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Reviewed in the United States on June 20, 2013 by Jackopuck
Style: Triangle
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.
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Reviewed in the United States on May 25, 2015 by Steve Fitzgerald
Style: Triangle
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
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Reviewed in the United States on July 3, 2013 by HafuGuy
Style: Triangle
This is a nice optic heavy duty always on. The only issue is when there is not much ambient light, such as when the your target is in a well lit environment and you are in the shade, the retical can have washout and be very difficult to see. Outside, in a well lit or very dark environment this optic is nice and fast. Intermediate lighting is its challenge due to no batteries to increase the retical brightness. If you want something that is always on and works well in most lighting situations this is a good choice. The triangle retical is also nice allowing you to sight in the top point of the triangle for distance targets. This optic is a compromise between a red dot and iron sight, better than irons not as good as a red dot when the batteries work, but way better than when your red dot batteries die.
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Reviewed in the United States on June 5, 2016 by Heather
Style: Triangle
I put this on my Kel-Tek KSG. It is the perfectly complemented sight system for that weapon. Quick, smooth and tough. I sighted it in at 40 yards for slugs, and it shoots perfect tight patterns of .00 Buck at 15 - 20 yards. It's like firearm and sight system were made for each other. I added some flip up iron sights as a backup and am set. I like it so much I ordered a second one for a 9mm. carbine I own. Update: 04-04-16 - Ordered a second Meprolight M21 and mounted it on my UZI semi-auto carbine. Another perfect match. it was simple to mount on both weapons with the right hardware, and very quick to sight in. I don't know what the few others are complaining about as far as "washout'. I live in Nevada, shoot at an outdoor range, and practice low light transitional building clearing (light to dark to light). I have no problem. I love this optic system. You just have to know what it is, and how to use it. It is rugged, tight, clear, and tough. Quick to acquire the triangle and point of aim on the target, with both eyes open, while on the move. It is not an ACOG, nor is it trying to be one. For me, it fits into the category of the EOTECH. I am very pleased with these purchases.
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Reviewed in the United States on March 23, 2016 by Saul Goodman
Style: Triangle
The Israeli Special Forces use it. 'Nuff said, yes? I'll say a little more anyway. Extremely solid optic, no fancy batteries, very clear lens, QD mounting base. You need a coin or something similar (lip of a 5.56 casing) to adjust windage and elevation. As many have noted, aiming from a dark place into bright light can cause washout, but I figure that's why God made back up iron sights. The triangle reticle took some getting used to, but now I kind of prefer it to just a dot. Allows for quick target acquisition and its not easy to lose track of the reticle. The dust cover does its job well, but its made of a neoprene-type material and I feel like if you were to run around with the dust cover on, it might slip off. Also, its advertised as "parallax-free", but I've definitely noticed some parallax with the optic. Might just be me, though, nothing a consistent cheek weld won't fix. All in all I love this sight, and I won't be giving it up any time soon.
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Reviewed in the United States on December 20, 2014 by Nathaniel
Style: Triangle
I have a couple ACOG's and this sight. Between the two I really don't know if I could pick a "better" or "worse". The M21 is, like the ACOG, simple. It is also cheaper. I purchased the REM21 and polarizer with flash guard. I use the latter on the ACOG's as well and have been testing the REM ACOG with great results. The flash guard isn't really needed unless you are worried about the flash, the polarizer is nice to have installed and the REM's are just a "no brainer" especially on the M21 as it does not hinder any of the good things the sight does while adding really great things to it! Which would I buy if I could only have one of these sights? Tough call as I know the ACOG well and only just getting into the M21. The price point on the latter is better but the ACOG is a really solid sight. I really can't help with that dilemma.
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Reviewed in the United States on August 30, 2023 by GregSCSA
Style: Triangle
Dark into light washout? That's the reason you have BUIS (back up Iron Sights ,Midwest). When in bright light it does not obscure the target, as a conventional red dot does . The Wash out light, mounted to the side, is OK , but eats the battery's and your back to the washout. Stick with the BUIS there's no battery to die. I have a 15" hand gard and the front sight is perfectly aligned with the aperture of the M21. Triangle is well defined and clear no issues with my astigmatism. In the almost impossible chance the glass is destroyed , the sight has a integrated QD throw lever mount. Off in 2 seconds. I bought this site because my daughters Holosun's electronics totally failed after one battery and about 1 hour of operation. So I gave her MY M21 from my rifle . That's right This is my second one for MY rifle (Wilson Combat 300 HAMR 125grn 2520 feet per second 1758 Foot Pounds of energy) . Th adage you get what you pay for is absolutely true Not worried about battery's? The first shot of World War Three will be an EMP. Ponder that,... and believe in Jesus, he's the only one that can save you. Update first shots fired at 50Yards. With 300 Blackout, Hornady 125 grn SST bullet, (2200FPS) 16" barrel, first group four inches low Three inches left. adjusted 6 clicks up2 clicks right . adjusted 2 clicks right done. Time, one minute. left zero 2" high at 50. This is a 225yrd battle Zero. and should be effective out to 300 yrds. One Minute click adjustment is large, but speeds up sight in. the C More targets are the best tool you can use.
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Reviewed in the United States on February 15, 2019 by Dan