Burris Fastfire 3 – Miniature Sight, Huge Performance

Last Updated on January 9, 2021.

The Burris Fastfire 3 is a lightweight miniature reflex sight suitable for different shooting applications. The clear picture and ease of use make it perfect for competition shooters or home defense. It can be attached to rail systems, used as a close quarters sight in conjunction with long-range optics, or installed on optics-ready pistols.

Burris 300234 Fastfire III with Picatinny Mount 3 MOA Sight (Black)


Extremely Versatile

Easy to Use

Easy to See

Forever Warranty


Small field of view

No protective cover included

Quality Control Issues

Is It Worth Your Money?

Burris has been a manufacturer of optics for a long time, not just in the firearms industry, and their products have a reputation for being high quality, affordable, and accurate.  

The series is lightweight, durable, and provides the shooter with a bright red dot for quick targeting.  

It is backed by the brand’s Forever Warranty so you can have ease of mind knowing your money is spent on an optic that is made to last a lifetime.

Scope Review and Breakdown

  • Features
  • Specifications
  • Ease of Use and Reliability
  • Battery Life

1. The bright red dot is easy to see and allows for quick targeting. It is available in either a 3 MOA size dot or 8 MOA size dot depending on the shooter’s preference. Eye relief for this unit is unlimited, so as long as the unit is on and the user is looking through it, the dot will be visible.

2. It is compact and lightweight, a perfect option for performance. The size won’t affect firearm stability, and it is shockproof to withstand recoil. It is especially crucial in competition shooting where speed and weight are huge factors for success.

3. It has exceptionally versatile mounting options. It is available with an optional Picatinny mount for standard rail systems and can mount to virtually any other firearm using available mounts from the brand. It can be installed on pistols, revolvers, bolt action rifles, semi-automatic rifles, shotguns, and even larger optics with no issues.

4. It has an automatic brightness sensor that adjusts to the current environment to make sure the dot is always visible to the shooter. There are also three manual brightness settings to choose from which are easily changed with the push button controls.


All of the Fastfire 3 models cost less than $300, which is middle of the road territory for a quality mini reflex unit.  Lower quality products are available for under $150, and several models from Trijicon are far more expensive than this item.

Who is this Scope for?

Type of Shooter

Type of Gun

Our Opinion

In our opinion, this product is a high-quality mini reflex that fulfills different purposes. It is easy to use and shooters with and level of experience will not have any trouble using the product. While a simple design, it has a wide variety of applications.

Our primary concern is with the reports of products leaving the factory with issues that should have been caught by quality control.

Several users had problems with units not working out of the box, unclear dots, and the units losing their zero very quickly. Burris has taken care of these with their warranty program, but it is still something to keep in mind.

If you do purchase this unit, you should always be sure to test it and train with it before putting to use in a real-world situation.

Products without the factory issues have shown to be accurate and reliable. For the price, it is one of the best ones on the market today.

Other Options Worth Looking At

There are several different models available on the market today. If this product isn’t quite what you are looking for you may try one of these other options:

1. The Fastfire 2 is similar to the later model but does have some different features. It is available with a 4 MOA red dot which some shooters may be more comfortable to use. It has only an On/Off button and automatic brightness and does not include the manual brightness settings on this product. It also uses a standard CR2302 battery, but it must be removed from the firearm for replacement

2. If you want to try a mini reflex but don’t want to pay for the Burris, there are several less expensive options available from Sightmark. Sightmark optics typically feature different size and color reticle options and different case designs but are still easy to use. They will not have the durability or quality of a more expensive unit, however, and should only be used by the casual shooter.

3. For the more experienced shooter, there is the Trijicon Rugged Mini Reflex. They are of the highest quality and are incredibly durable. Trijicon optics are used by many law enforcement and military agencies worldwide and will perform to the highest level in any situation.

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