Vortex Razor Red Dot vs Burris Fastfire – An In depth Sights Comparison Guide


Are you tired of squinting at your scope in an attempt to achieve a higher level of focus when aiming? Then it is about that time that you enhance your rifle. Vortex Razor Red Dot as well as the Burris Fastfire sight are one of the most ideal optics in the industry. 

The popularity of red dots is continuing to rise as industries continue to produce top-rated rifle accessories. Vortex Razor red dot and the Burris Fastfire III are known to be very effective and dependable serving shooters well in all kinds of range and hunting activities.

I enjoy hunting and whenever I am purchasing a reflex sight, I prioritize optics that work well with MOS pistols as well as ARs. Other factors that I consider include the durability, the housing unit, and the red dot’s ability to withstand external conditions. These factors allow me to invest in the most ideal choices for all my shooting activities.

What are the differences between Vortex Razor Red Dot and Burris Fastfire?

Vortex Razor Red Dot
Burris Fastire III
Vortex Razor has a very sleek and elegant design. The lighting controls are designed on the left side with the power switch. It also comes with a windage and elevation modification system. Users can also benefit from the Weaver mounts.
This sight is very small and light in weight. Users can adjust this sight to 3 different levels to enahnce the brightness. It also comes with brightness adjustment features that can be modified.


Dot Size
3 and 6 MOA
3 and 8 MOA
Weather Resistant
1 Ounce
1.5 Ounces
1.8 inches
1.9 inches

Vortex Razor Red Dot vs Burris Fastfire – How do they Compare? 

Reticle Size 

Both the Vortex Razor and the Fastfire III model come with two different reticle sizes. Vortex Razor is designed with a 3 and 6 MOA dot option while the Fastfire is designed with a 3 and 8 MOA dot option. The difference of the 3 MOA dots of both optics is quite small, you can hardly notice it. The difference between the 6 and 8 MOA is quite large.

When it comes to your precision as you fire, many shooters prefer to work with the 6 MOA dot. The fast acquisition of any target that is in motion is not so easy. The smaller dot enhances your aim and is a great choice especially if you are working with different tactical applications. In this case, the Vortex Razor red dot is a better option than the Fastfire III model that is designed with a much clumsier 8 MOA option.

Image Quality 

As a shooter, the quality of the image is one of the factors that must be considered when making a purchase. Burris Fastfire III excites many shooters because of the excellent quality of the image produced. Vortex Razor has also managed to challenge the Fastfire, attracting lots of shooters. This is because of its amazing image quality.

The lens diameter of the Fastfire measures 21mm while the Vortex Razor measures 24mm. The field of view (FOV) of the Vortex Razor is much wider than the Fastfire III. The larger lens diameter and the wider field of view of the Vortex Razor prove that the Vortex Razor red dot is a better choice than the Burris Fastfire III.

Weight and Size 

Both the Razor red dot and the Fastfire III are very light in weight and compact. Vortex Razor measures 1.8 inches while the Fastfire is 1.9 inches. The difference in size is quite small, however, the Vortex Razor is a better option because its small size makes it easier to mount onto any kind of pistol. When it comes to the weight, Vortex Razor only weighs 1 ounce while the Fastfire III weighs 1.5 ounces. The 0.5-ounce weight difference is very negligible, however, according to experts, even a slight difference of 0.1 oz can really affect your shot. The Fastfire weighs more because it is mounted on Picatinny rails. The Picatinny rails allow you to achieve an excellent level of applicability. Vortex Razor’s compact size and lightweight makes it a better choice than the Burris Fastfire III model.

Vortex Razor Red Dot vs Burris Fastfire – A Comparison Overeview

Burris Fastfire III

This red dot is designed with two different MOA options. This includes the much finer 3 MOA dot and the 8 larger MOA. When using this red dot, you must mount it on the provided Picatinny rails to improve the applicability of this sight. The 3 MOA option is very precise a great fit for all kinds of shooters. Burris Fastfire III is designed with sensors to enhance the brightness level. These sensors function automatically.

The batteries are attached to the top side of the red dot. This makes the replacement process so easy as you do not have to detach the sight. Fastfire’s 8 MOA option is specially designed for handguns as it improves your precision. The 3 MOA is a perfect choice for your gun and rifle. Both of these options are ideal for even distant targets.


  • It works well for fast acquisition when firing at any of your targets
  • Small and lightweight
  • Functions well even when exposed to harmful external factors such as shock and water.


  • The 8 MOA dot option is not the best
  • Uses a CR1632 battery model that cannot be easily accessed

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Vortex Razor Red Dot

Vortex Optics Razor Red Dot Sight - 3 MOA Dot
  • The Razor Red Dot Sight-3 MOA is designed to be mounted to a wide variety of firearms and used in various...
  • A premium wide field lens gives the shooter an impressive field of view. The daylight bright red dot has...
  • Anti-reflective XR coatings on the lenses increase light transmission for maximum brightness while...
  • O-ring sealed and a rugged one piece chasis constructed from aircraft grade aluminum ensure waterproof...

This optic is manufactured with a 3 MOA and 6 MOA dot option. It has a very elegant and sleek design. A great option if you are looking for a red dot that will perform well and has an amazing level of flexibility. Vortex Razor’s window is very wide and clear allowing users to make use of the edge-to-edge sharpness design. The field of view is very wide and the optic is protected with thick and durable aluminum housing.

With this sight, you can use any kind of side-load battery tray that functions properly. The process of changing the battery is very easy as you do not have to dismantle the optic from your scope. This makes it a great choice for shooters who use rifles and shotguns. When mounted on Picatinny rails Vortex Razor weighs only 2.4 ounces. When adjusted to the highest setting this optic can run up to 150 hours and when adjusted to the lowest setting it runs for 30,000 hours.


  • It is compact and lightweight
  • The aluminum coating ensures that the sight is not affected by elements such as shock or water
  • Designed with an enhanced light transmission feature


  • The process of replacing your battery is very easy yet so slow

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Both the Vortex Razor red dot perform very well. Burris Fastfire has been in the market for a very long time and many shooters have revved about its excellent performance. The Razor red dot on the other hand has not been in the market for as long, however, it has still proven to be one of the most ideal optics as it is designed with a great array of features.

 Verdict: So, which one is better – Vortex Razor Red Dot or Burris Fastfire III? 

The clear winner is the Vortex Razor red dot. This red dot performs better than the Burris Fastfire III in all the categories mentioned above. The Vortex Razor red dot also has a much longer battery life and the modification level is a lot simpler. The brightness controls can be modified and you can use the automatic shutdown feature to preserve the battery life. ED

Frequently Asked Questions

  1. What is a better red dot option, the 3 MOA or 6 MOA?

If you are shooting at a target that is at 50 yards, the 3 MOA dot will be able to cover a circle of 1.6 inches. The 6 MOA dot on the other hand can cover a circle of 3.2 total inches. If you want to work with a red dot that will provide you with a finer level of precision the 3 MOA dot is the best option. If you are looking to rapidly fire at your target and accuracy is not necessary, the 6 MOA Is the best option.

  1. Is the Vortex Razor red dot compatible with any night vision

No. This red dot is not designed with any night vision capabilities.


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