Skip to main content

Trijicon MRO Green Dot Sight

Made to be used on rifles, carbines and shotguns, the new Trijicon MRO green dot sight is ideal for competition shooting, hunting and plinking.

Trijicon MRO Green Dot Sight

Photos by Mike Anschuetz

Besides fiber-­optic sights, red is almost exclusively used in miniature reflex sights as the dot reticle. It’s so common, in fact, that “red-­dot sights” has become the collective label for this optic category. Compared to other colors, red LED emitters have been all but perfected, as they now require less energy to run for longer durations between battery changes. Red dots have proven to be very durable and resistant to the stress of recoil impulses generated and transferred after a gun is fired.

A great example is the Trijicon MRO (Mini Rifle Optic), which has been a popular red-­dot sight for some time. The small, lightweight optic makes shooting easy for just about everyone. Just put the dot on the target and squeeze the trigger. The big news is that the Trijicon MRO sight is now offered with a green dot.

Green Dot Science

One-­in-­12 males have some degree of red/green color blindness. A red reticle may appear fire engine red to one person, while the same reticle could be processed as a light orange by another. Shooters with aging eyes lose the ability to focus on fine points as well as the color red to a certain degree. Further, older shooters generally see green more consistently, as green is more forgiving to the unfocused eye.


Green isn’t just for aging eyes, either. The human eye is more sensitive to green and can see more shades (i.e., tones) of it than any other. Green is a cooler, calmer hue that the eye immediately recognizes and is not irritated by. The rods and cones within our retina process green better than red, especially in low-­light conditions. Think about how you acquire a sight picture in changing lighting conditions. Moving from a light room to a dark room, your eyes try to adapt.


Not all greens are created equal. Like all colors, green is available in many tones. Trijicon chose to equip its new MRO with a green color on the spectrum at 575 nanometers (nm). Green can be described by a color number. A bluish green, for example, would fall in the 480nm range, whereas leafy, light green tends toward 500nm. It appears as a yellow-­­green color near 580nm. The 575nm that Trijicon uses is not yellow. Rather, it closely resembles the green found in green phosphate night vision devices. It stands out well against green foliage.

Trijicon MRO Green Dot Sight

Trijicon MRO Green Dot Sight Specs

The 1X green-­dot MRO sight has a 2-­MOA dot and eight brightness settings. It is 2.6 inches wide by 2 inches tall, so it is very compact. The sight weighs 4.1 ounces with battery, and the CR2032 battery can stay on for a full year at the level three brightness setting. The objective lens diameter is 25mm, and the rugged body is made of 7075-­T6 aluminum.

Trijicon also changed the color of the lens with green-­dot MROs. They use a notch filter that reflects back a specific color wave length to the eye that allows the user to see a clean, crisp dot. The lens has a slight purplish tint, but it is less obvious than the bluish coating seen on the red-­dot MRO. While the glass is clearer, Trijicon didn’t change the len’s prescription. Parallax performance remains the same.

The tool-­less adjustment, full ambidextrous design and ruggedness mean that any shooter can use this sight to full advantage. Made to be used on rifles, carbines and shotguns, the new green-­dot MRO is ideal for competition shooting, hunting and plinking.




Current Magazine Cover

Enjoy articles like this?

Subscribe to the magazine.

Get access to everything Guns & Ammo has to offer.
Subscribe to the Magazine

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

Trijicon RMRcc Reflex Sight – Perfect for Optics-Ready Concealed-Carry Pistols

Trijicon RMRcc Reflex Sight – Perfect for Optics-Ready Concealed-Carry Pistols

The people asked and Trijicon answered. Introducing the RMRcc miniature red-dot sight for compact, concealed-carry pistols. Trijicon's new RMRcc features the durability and reliable controls that have made the RMR so successful, but its reduced dimensions make the “Concealed Carry” model better suited for the popular small-frame pistols designed for discreet carry and personal defense.

Cameras Don

Cameras Don't Lie: Subsonic 9mm vs. .300 Blackout

In this segment of "Cameras Don't Lie," a subsonic-ammo showdown, 9mm vs. .300 Blackout fired from AR rifles.

Pocket-Pistol Carry Tips and Tricks

Pocket-Pistol Carry Tips and Tricks

Pocket carry, as a method of concealed carry for a defensive firearm, can be a practical option when done right. This is especially true during the colder months when heavy outer garments can obstruct access to a traditional waistline holster. Former U.S. Navy SEAL Jeff Gonzales, president of Trident Concepts, joins G&A contributor Kimberly Heath-Chudwin to discuss guns, training and gear, including Blackhawk's TecGrip holster that can make pocket carry more successful.

Air Gun Reviews: Why Shoot Airsoft?

Air Gun Reviews: Why Shoot Airsoft?

In this Guns & Ammo TV segment, Gun Tech Editor Richard Nance and Pro-Shooter Jim Tarr discuss the benefits of airsoft training for uniformed professionals and armed citizens alike.

See More Popular Videos

Trending Articles

You might be surprised how many Americans (even gun owners) think machine guns are illegal.Machine Guns — Can You Own One? Rifles

Machine Guns — Can You Own One?

Eric R. Poole - December 15, 2020

You might be surprised how many Americans (even gun owners) think machine guns are illegal.

Whether you're going hunting or to the range, hitting your target is more fun when you have a zeroed rifle scope. Here's how to sight in your rifle scope setup in five quick-and-easy steps.How to Sight In a Rifle Scope in 5 Steps How-To

How to Sight In a Rifle Scope in 5 Steps

Craig Boddington - June 04, 2018

Whether you're going hunting or to the range, hitting your target is more fun when you have a...

The Hornady 6.5 PRC (Precision Rifle Cartridge) is a 6.5 PRC - Magnumized 6.5 Creedmoor Rifle

6.5 PRC - Magnumized 6.5 Creedmoor

Tom Beckstrand - August 01, 2018

The Hornady 6.5 PRC (Precision Rifle Cartridge) is a "magnumized" 6.5 Creedmoor. It offers...

9 Commonly Misused Gun Terms How-To

9 Commonly Misused Gun Terms

Kyle Wintersteen

"Assault weapon." Sixteen-round "clip." A box of "bullets." When it comes to guns and gun...

See More Trending Articles

More Optics

Comparing the speed of stock sights against express, three-dot, suppressor-height and red dot sights.At the Speed of Sights Optics

At the Speed of Sights

Jeremy Stafford - December 22, 2020

Comparing the speed of stock sights against express, three-dot, suppressor-height and red dot...

When researching any type of riflescope, binocular or spotter, the name Vortex pops up just about everywhere you look. All optics they make, even electronic sights, have a lifetime warranty, and they have one of the best service departments in the business backing that up.Vortex Red Dots Optics

Vortex Red Dots

Ilya Koshkin - August 19, 2020

When researching any type of riflescope, binocular or spotter, the name Vortex pops up just...

The Swarovski Z5(i) P BT L 3.5-­18x44mm has a unique and versatile multiple-­zero system and an erector assembly unlike any other on the market. The Z5(i) is an excellent choice for an all-­around hunting scope.Swarovski Z5(i) P BT L 3.5-­18x44mm Scope Review Optics

Swarovski Z5(i) P BT L 3.5-­18x44mm Scope Review

Tom Beckstrand - September 09, 2020

The Swarovski Z5(i) P BT L 3.5-­18x44mm has a unique and versatile multiple-­zero system and...

The United States Army has adopted the SIG Sauer Tango6T 1-6x24mm as its new dedicated optic for squad designated marksmen.SIG Sauer Tango6T 1-6x24mm Review Optics

SIG Sauer Tango6T 1-6x24mm Review

Tom Beckstrand - December 31, 2020

The United States Army has adopted the SIG Sauer Tango6T 1-6x24mm as its new dedicated optic...

See More Optics

Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE Arrow

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Guns & Ammo App

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Phone Icon

Get Digital Access.

All Guns and Ammo subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now