Trijicon Rmr Type 2 Vs Sro- A Detailed Comparison Guide


The Trijicon Rmr Type 2 are available in a variety of models, so choosing the perfect one can be confusing. However, to help you narrow to a few units, you will have to establish the purpose with which you want the Rmr. Some will therefore, provide some rather small dots, which are best for longer hits, while others offer bigger dots that are easy to pick.

Trijicon Sro on the other hand boasts of offering a wide field of view with concerns being directed at their durability at least when compared to the Rmr. So, while the majority of users preferr to use the Sro with a fun or competition gun, we believe that both these units have much more to offer, the reason we came up with the below extensive comparison guide.

What are the differences between the Trijicon Rmr Type 2 and the Sro?

Trijicon Rmr Type 2
Trijicon Sro
33.2g (with battery)
46g ( with battery)
Brightness settings
Automatic and 8 adjustable settings
Automatic and 8 Adjustable settings
Battery life
Offers up to 4years at settings 4 and 8
Offers 3 years of continuous use at settings 4 and 8
Dimensions (L x W x  H)
1.8 x 1.2 x 1.0 in.
2.2 x 1.3 x 1.4 in.
Sight Window
98 x .89 in
87 x .63 in.
Submersible depth
20m (66ft)
Available dot Sizes
1.0 MOA, 2.5 MOA, 5.0MOA

Trijicon Rmr Type 2 vs Trijicon Sro- How do they compare?

  1. Build and design

Both the Trijicon Rmr Type 2 and the Sro are the open type of sights, featuring an easy to mount design, Rmr for example comes with a patented housing shape meant to diverse the force of impact away from the lens. The unit can double up as a secondary sight with the magnified optic and it can also be used for multiple primary applications on shotguns, pistols, and the carbine.

If you wish to tweak the illumination settings check on the sides of the optic where you will find the dial and you can, therefore, alternate between the automatic and manual modes. What’s more is that it is dual illuminated in that the incorporated Tritium phosphor lamp illuminates the reticle in the low light conditions.

Nothing much goes on with the Trijicon Sro but it does have some minimal interesting features, for example, you will be provided with a large unobstructed field of view thanks to its large objective diameter; loading the battery is a breeze and can, therefore, be done from the top. Mounting the sight is pretty seamless given that you are going to use the same base as the Trijicon Rmr.

The build and design of the Trijicon Rmr is the best because of the unique patented housing shape which diverts the force of impact away from the lens thus enhances durability.

  • Sight Window

Sight windows are to provide the shooter with peripheral vision, so if the window is larger, you definitely get plenty of peripheral observation. The above then means that target acquisition will not be an issue and you can, therefore; increase the speed of the follow-up shots.

Trijicon Rmr window sight is 98 x .89 in while the Trijicon Sro window sight is 87 x .63 in, if you are, therefore, looking for a sight that will offer you plenty of peripheral observation then the Trijicon Rmr is the best sight thanks to the large sight window.

  • Weight

Shooters rarely prefer a unit that is too heavy, but it’s all about personal taste, a light weapon allows easy transition, is easy to carry around and use when speed is in the detail. On the other hand, some people tend to achieve accuracy when using heavier riffles, what’s more, there is that fact about the heavier the weapon the lesser the recoil.

In our case, however, we are not looking to add more weight to the weapon rather to shed off a few pounds, so that the user can achieve accuracy on the go and transition between targets easily. The Trijicon Rmr Type 2, therefore, comes out as the best unit as it is light in weight at 33.2g inclusive of the battery.

  • Submersible Depth

The optical sights whether used for recreation, hunting, or professionally, are made to withstand various levels of submersion. Some are configured to remain functional even when being used in adverse weather conditions and can, therefore, handle different climatic conditions without compromising on effectiveness.

How deep you want to go into the water with your weapon will be determined by the incorporated sight, so if you are a deep swimmer then the Trijicon Rmr type 2 is the best because it will offer you precision even when submerged up to 20m deep. Trijicon Sro does not offer much and you will, therefore, get 10ft.

Trijicon Rmr Type 2 vs Trijicon Sro- A Comparison Overview

Trijicon Rmr Type 2

Let us begin with the fact that the Rmr features upgraded electronics in form of the rugged battery contacts and electronics which ensure enhanced performance and survivability in dynamic environments. The sight is user-friendly given that all the adjustable parts and dials have been positioned within your hands reach, for example, the windage/ elevation is easily adjustable and you will not need to use any special tools.

The incorporated true color multi-coated lenses enable the wide-band light transmission necessary for the minimal changes in the target area color.


  • Incorporated the manual brightness adjust buttons
  • Installation is a breeze
  • The unit is waterproof and comes with a sealing plate


  • Too many counterfeits in the market

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Trijicon Sro

Trijicon RMR Type 2 3.25 MOA Adjustable LED Red Dot Sight
  • 3.25 MOA adjustable LED RMR: features an automatic brightness mode and easy push buttons for eight...
  • Dependable electronic design: ruggedized Battery contacts and electronics ensure performance and...
  • Unique patented housing shape: military-grade aluminum alloy forged housing shape diverts force of impact...
  • Battery conservation mode: automatically adjusts aiming dot to ambient lighting conditions after 16.5...

The most outstanding feature of the Trijicon Sro are the three distinct dot sizes, each for use in different applications. The unit will, therefore, offer you a 1.0MOA adjustable LED red dot, which is good when used with a rifle or a target pistol, the 2.5MOA which is also quite popular is the most versatile and can be adopted for use in most applications.

We then have the 5.0MOA red dot, necessary for use with applications where speed and recovery of the dot is of the utmost importance.


  • Offers the best dot quality
  • Comes incorporated with a large window sight
  • Offers better target acquisition even without wearing glasses


  • The large window sight makes the sight bulky

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The Trijicon sro is a versatile sight thanks to the three different dot sizes, which can be used in various applications, Trijicon Rmr on the other hand, is a lightweight sight with a large window sight thus offers plenty of peripheral vision.

Final Verdict; so which is better, the Trijcon Rmr Type 2 or the Trijicon Sro

The Trijicon Rmr is the better unit because it can be used when submerged 20m deep, and is equipped with 3 different dot sizes necessary for different types of shooting applications.


  1. What does the RMR in the Trijicon type 2 sight stand for?

The initials RMR stand for Ruggedized Miniature Reflex Sight

  1. What is the Lens of Trijicon Sro made of?

The lens incorporated in the Trijicon Sro is made of Tempered glass, which is scratch-resistant and can absorb the shock of a drop.

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Terrence Miller
Terrence Miller is a hunter by birth, picking it up from a lineage of hunters and will probably hand the skill down to his son. He has been hunting since he was a young boy and has knowledge of both the new and old hunting equipment. This goes to say that the information provided is very reliable and conclusive. Using the hunting rifles and getting the right hunting gear seems to be a challenge for many individuals who want to learn the skill of hunting. And the reason why the information presented by Miller has detailed coverage on the different types of rifles, and rifle scopes. When not in the wild hunting, Miller loves horseback riding.


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