Vortex Viper vs RMR – Which Red Dot Performs Better?


If you are looking to advance your handgun or your pistol mounting a mini red dot sight is one of the best ways to do so.. The Vortex Viper and the RMR are a guaranteed way to improve your accuracy and precision providing you with an additional advantage as a shooter.

Today’s industry is filled with a ton of great weapon accessories and the Vortex Viper red dot as well as the Trijicon RMR model are two of the most ideal weapons in the market. The Trijicon RMR model is much older, however, both red dots are guaranteed to satisfy the client as they provide shooters with impressive levels of power that are hard to beat.

As a shooter, before I invest in a brand-new sight, I must compare the features and abilities with other sights in the market. This exercise guides me well, allowing me to select the most ideal red dot sights for all my needs.

What are the differences between Vortex Viper and RMR?

Vortex Viper
Trijicon RMR
This red dot sight is bright nd sharp with a neat design. The focus knob can rotate smoothly. It is armored with rubber and it is strong enough for all type of outdoor rugged activities.
This red dot sight is strong and reliable with an enhanced level of exactness and accuracy. The firearm that it will be mounted on will not compromise the performance of the red dot. The shape of the red dot is patented absorbing heavy levels of impact and the stress is diverted away from the lens improving the durability level.
Eye Relief
Dot Size
6.5 MOA
Die Cast Aluminum
Forged Aluminum
1.8 inches
1.78 inches
1.03 ounces
1.2 ounces

Vortex Viper vs RMR – How do they compare?

Night Vision 

Trijicon RMR model is compatible with night vision settings and features. The red dot is designed with eight brightness settings that can be adjusted. This sight also has two options that come in handy for all kinds of night vision activities. Thanks to these features, you can view targets even if they are in an area where there is no surrounding light, or perhaps the light is at a minimum level.

When it comes to Vortex Viper, you will realize that the optic is not designed with any kind of night vision settings or features. Therefore, it cannot work with any kind of night vision features. The fact that Trijicon RMR is compatible with all types of night vision features makes it a better choice than the Vortex Viper. 

Reticle Size 

Different red dots are designed with different reticle sizes. All type of reticle sizes is designed for different purposes. Dot sizes that measure from 1 MOA to 2.5 MOA allow you to benefit from precise shots during long-distance shooting activities. Red dot sights designed with wider MOA dots that range from 5 MOA to 6.5 MOA, provide users with a quick-firing level, however, the accuracy of the shot is not as precise.

Vortex Viper is designed with a 6 MOA red dot size while the Trijicon RMR model comes with a red dot size of 6.5 MOA. The difference between both red dots is quite negligible. Trijicon RMR may have a much wider diameter, however, it performs better than the Vortex Viper when it comes to firing at numerous targets.

Battery Life 

Battery life is one of the most vital factors that you must put into consideration when you are looking for a new red dot. This factor can greatly influence your performance while out on the field. The battery life of Trijicon RMR will last for 4 years. This is possible even when the brightness setting is set at the 4th level. The Vortex Viper can run for up to 30,000 hours even when it is modified to run at the highest brightness setting. 30,000 hours is 3 years. This factor proves that the battery life of Trijicon RMR performs better than Vortex Viper.


Trijicon RMR is not as affordable as Vortex Viper. This is because the RMR model is of very high-quality. It performs exceptionally well and its strong and durable housing makes it a big deal. Trijicon RMR is one of the most ideal red dot sights in the market, however, if you are looking for a more affordable option, Vortex Viper is the best option.

Vortex Viper vs RMR – A Comparison Overview

Vortex Viper

Vortex Optics Viper PST Gen I 6-24x50 FFP Riflescope - EBR-2C MRAD Reticle
  • The Viper PST 6-24x50 First Focal Plane boasts features associated with top-tier riflescopes. The...
  • Matching reticle and turret measurements allow accurate, fast dialing of shots. The EBR-2C (Enhanced...
  • Customizable Rotational Stop (CRS) aids in return to zero after dialing temporary elevation correction....
  • Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp...

This is a 6 MOA sight that is designed with an excellent sleek design as well as a crisp and clear lens coating. This sight comes with illumination controls that are found on the left-hand side just like the power switch. Vortex viper also comes with a 1MOA elevation and windage adjustment. It operates on a CR 2032 battery and is delivered with Weaver mounts.

The Viper model is very small and has a sleek design. You do not have to detach the red dot to access the battery. The bright daylight red dot optic can be spotted easily and the target can be painted no matter what climatic condition or background it is exposed to.


  • Users are provided with a very clear and wide viewing glass
  • It is resistant to factors such as shock and water
  • The mounting height is very low.


  • Does not come with any windage or elevation adjustments
  • The sight is not designed with an auto-brightness function

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Trijicon RMR

Trijicon RMR Type 2 6.5 MOA Adjustable LED Red Dot Sight
  • Battery Life Over 4 years of continuous use (when used at 70ºF (21ºC)) at setting 4 of 8. Extreme...

This 6.5 MOA sight is one of the best options in the industry. It has a patented housing design and it is a great fit for the slide ride type of handguns. It makes use of mil.spec technology. Trijicon RMR is great for shooters who operate in tactical and rugged environments. This RMR model is designed with an adjustable LED that provides you with a simple illumination control feature.

Shooters get to benefit as the sight performs well even in different types of environmental conditions. Users are guaranteed that they can move from an indoor environment to outside and even shift from a very dark place to a brightly lit location without your view getting compromised in any kind of way. You can also easily toggle from the automatic to manual setting. Modifying the brightness and well as switching off the RMR is also quite easy.


  • Great level of durability
  • Adjusting the settings is very easy
  • The brightness level can be modified quite easily.


  • After changing your batteries, you must re-sight the red dot
  • It is expensive

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Both the Trijicon RMR as well as the Vortex Viper are one of the most ideal red dot sights in the industry. They provide users with great levels of performance. The Trijicon RMR has been in the industry for a longer time, however, the much newer Vortex Viper has managed to attract shooters because of its great quality.

Verdict: So, Which is better – Vortex Viper or RMR

The high-quality features and the great capabilities of Trijicon RMR make it a better deal than the Vortex Viper. Because of its very strong and reliable construction as well as its great performance level, the sight is available at a much higher price.


  1. Does the RMR model require a sealing plate to operate?

If the RMR is designed with voids at the bottom part or perhaps the bottom area is not fully covered, then the RMR should not be designed with a sealing plate. However, if this is not the case then users do not have to work with a sealing plate.

  1. Do you require iron sights for your red dot?

You do not have to use an iron sight with your red dot. It will function properly even without having a backup iron sight.


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