Burris Fastfire 2 vs 3 – An Illustrated Red Dot Comparison


For years, the Burris FastFire industry has attracted a number of shooters because of the high quality red dots that they produce. With these optics, shooters get to benefit from an advanced level of target acquisition. The Burris Fastfire 2 and 3 red dots are guaranteed to provide shooters with an upper hand when firing at a target.

The Burris industry is one of the best pistol accessory manufacturing industries. If you are looking for an optic that will simplify your aim, both the Burris Fastfire 2 as well as the Burris Fastfire 3 are excellent models. Shooters who take part in hunting or range applications will definitely enjoy being on the field with these optics.

Comparing different types of red dots gives me the chance to select the most ideal option for my activities. Features such as the focus, the front and rear sight as well as my target are some of the factors that I look out for when purchasing a brand new red dot.

What are the Differences Between Burris Fastfire 2 and 3

Burris Fastfire 2
Burris Fastfire 3
Burris Fastfire 2 comes with an automatic brightness sensor that can be modified to your surrounding environment. This allows you to keep hitting your target.
Fastfire 3 model is light in weight and durable. It places a bright red dot on your target providing you with a great advantage when it comes to speed and precision. The sight can be mounted on top of any kind of sight or it can be used as the primary sight when your out in the field.
Objective Lens Diameter
21 x 15 mm
21 x 15 mm
Reticle Color
Picatinny mount
Picatinny/Weaver mount
Eye Relief
Waterproof and Shockproof
Waterproof and Shock proof

Burris Fastfire 2 vs 3 – How do they Compare?


Burris Fastfire 2 has a very simple design with an on or off button switch. As soon as the cover is removed, the optic automatically comes on. It is very well built with a solid build. It is guaranteed to last even when exposed to great external factors. The Fastfire 3, on the other hand,  comes with very easy elevation and windage functions that can be easily modified with only a couple of shots. There are many modes in this spec that are small and can be easily mounted and modified. This optic also comes with an automatic adjust feature that enhances the light level and you can adjust the brightness level to their preference. Fastfire 3 however, comes with numerous setting push buttons and the optic keeps getting left on. The simple features of the Burris Fastfire 2 make it easy to use and a better option than the Fastfire 3. 

Key Specifications

Fastfire 2 sight performs well and it has a very low-profile design. It is rugged and can be easily mounted on any kind of scope. The sight works well in all types of lighting conditions, even if it is very bright outside and this factor makes it very valuable. Burris Fastfire 3 can also be easily mounted. It is compact with a rugged and elegant design. Users also get to enjoy a large viewing area with very clear optics. Many shooters, however, have mentioned that the automatic brightness level of the Fastfire 3 model is bright even when exposed to very low light. The Fastfire 3 cannot be adjusted to a low level that can work well in different lighting conditions. The Burris Fastfire 2 is a better option as it works well in low lighting conditions than the Burris Fastfire 3 model. 


The battery of the Fastfire 2 model is very small and light in weight. Adjusting the battery is very easy and users are provided with a battery life of up to 20,000 hours. Changing the battery is not so easy, however, this process only happens once or twice in a year. The Fastfire 3 model in contrast,  has a great design as users do not have to detach the sight to replace the batteries. Therefore, if you lose power, all you need to do is look through the sight lining. This makes the battery replacement option so easy and the battery life is at 50,000 hours. The easy battery replacement method of the Burris Fastfire 3 model and the great battery life makes it a better option than the Fastfire 2.

Burris Fastfire 2 vs 3 – A Comparison Overview

Burris Fastfire 3 

Burris Fastfire 3 is one of the most popular models in the industry. One of the best factors is putting the red dot together because it is so easy. Users are provided with a threadlock of 15 inches on a clamp and a thread lock of 12 inches on the sight. In addition, a lot of people prefer how they can easily sight their guns with Fastfire 3. If you have been using your pistol for very many years, this sight allows you to deal with any aging problem that could be experienced. It also works well in saving your battery life. You can turn off the red dot to and make use of your iron sight any way you would like to.

There are four different brightness options. This is the auto bright option, the low bright, medium bright as well as the high bright. You get the chance to adjust the auto feature in any way that they like. If you run out of power, or perhaps your scope goes off, as soon as you turn it on, it will activate to your last setting. This allows you to save on time while improving your performance.


  • The mounting process is quick and easy
  • It is affordable
  • Everything scope is guaranteed to fit onto your firearm in a very secure and tight manner.


  • The Dot Size is not the best
  • It does not come with a protective cover
  • Many users have mentioned that the units are faulty.

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Burris Fastfire 2

This 4 MOA dot sight, releases a bright red color on the target allowing for rapid target acquisition and a simple aiming function. It is small and light in weight and this will not affect the balance or the handling of the pistol. The 1x magnification level allows you to have both eyes open when firing. This improves their target acquisition and awareness. For an enhanced level of accuracy, the Fastfire 2 is parallax free. The mounting process is also very easy. It can be attached to rifles, shotguns, and even handguns.

The brightness sensors operate automatically modifying the brightness to level up with the surrounding conditions. Elevation and windage make the fine-tuning process very easy. You are guaranteed that you will benefit from an excellent brightness level thanks to the high-quality optical glass that is very durable. It is also resistant to dangerous external factors such as shock and water. With the Picatinny mounts, you can place this sight on your shotgun, handgun, and rifle.


  • It is easy to use
  • The installation process is fast and uncomplicated
  • Light in weight


  • The optic is quite small and users have to search for the dot.

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As mentioned earlier, the Burris industry has continued to release high-quality scopes that perform exceptionally well. The Fastfire II and Fastfire III models provide users with a clear point of view allowing users to achieve a precise shot for their targets. Mounting these scopes is also very easy.

Verdict: So which one is better – Burris Fastfire 2 or 3?

When it comes to selecting the best scope, the Burris Fastfire III is the better option. Fastfire II outperforms the Fastfire III model in all the major categories. Users prefer to use this scope because of the easy to use features. The amazing lighting conditions of the Fastfire II come in handy when you are maneuvering through different environmental conditions.


  1. Where are Burris red dots manufactured?

The Philippines manufactured most of the parts of the Burris red dot and most of the sights produced are assembled in the Philippines, however, there are a few models that are put together in the United States of America.

  1. What is a Picatinny mount?

This is a rail system that is designed to provide a platform for mounting gun accessories.


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