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Burris Fastfire III Review

The Burris Fastfire III is an optical device used to project parallel rays of red light. This unique gun sight projects this red-dot at the point of aiming to infinity. You, the observer, will see a red point that clearly marks your target.

Asking if you get shots on target with this sight is out of the question. With such ability, you definitely will! So, let’s learn more about this product in this Burris Fastfire III review.

How does this scope work?

The LED hidden inside its body emits light in the direction of the lens, on the inner surface of which a translucent reflective coating is applied. Rays of light reflect from the surface of the lens to form a parallel beam.

Easy to use, and requiring no lengthy instruction manuals as with basic gun scopes, you really should check this one out…

Burris Fastfire III
Our rating:0 out of 5 stars (0 / 5)

Burris Fastfire III Overview

The red dot Burris Fastfire III is ultra-compact and lightweight, and it weighs only about 25 grams. This unit features a bronzed stainless steel and an anodized aluminum frame that makes it both very strong and durable. The Burris Fastfire III has a low magnification (x1), which gives it an extremely wide field of view.

One of the very few fully waterproof devices in this product category, it is a good option.

Use it with any firearm…

Because of its small size and weight, the FastFire can be directly attached to almost any weapon, including even the cover-bolt of a semi-automatic pistol. In fact, the scope can be used on pistols, shotguns, and rifles.

burris fastfire iii review
Photo by All Equipped

It is also virtually parallax-free between 9 and 137m. And it can be switched on or off for longer use. You also get to adjust the brightness to fit your needs.

Overall, the included battery will last you up to five years. This is certain, as the unit powers down automatically every 8 hours. Even if you forget to turn it off, your battery life remains intact due to this handy feature.

You won’t strain your eyes…

The Burris Fastfire III has an unlimited field of vision. It also has a red dot of 3 MOA/8 MOA. These two different models allow you to pick out one that will best suit your needs. Hence, you get convenient shooting, without straining your eyes.

Waterproof (100% waterproof and submersible) this proves to be the ideal red dot pointer for so many applications.

Brighten up your day…

You get access to the stack from above without dismantling, and without modifying the point of impact. And you get click adjustment without tools; 3 manual brightness settings, 1 auto brightness adjustment and a low battery indicator.

You also get a protective cap for those times when you need to store your scope safely.

Advantages Over Other Types of Sights

The Burris Fastfire III sight is the best choice for the shooter who wants to maintain a balance of weapons and works mainly at short and medium distances.

For firing at medium to long distances, in addition to the Fastfire, you can purchase a regular scope. It mounts alongside a scope, so you will generate the best long-range results using both of them together.

burris fastfire iii
Photo by Hjwasson
Here are some additional details
  • Allows you to look with two eyes, straight at your target, and still get a precise shot.
  • Light in weight, with small dimensions.
  • Parallax is practically non-existent.
  • Costs several times less than most sights, and it runs using far less battery power.

The Main Features of The FastFire III

  • Coated lens window for increased light transmission.
  • 3-MOA and 8-MOA red dots with three levels of intensity and automatic brightness mode.
  • The matte black aluminum case is resistant to corrosion and scratches.
  • The top battery compartment allows you to replace the battery without removing the sight.

Burris Fastfire III Pros & Cons


  • Near universal fit with all gun types.
  • Auto shut off feature to prolong battery life.
  • Can be used with scopes for long-range targeting.
  • Lightweight, inexpensive, maintenance-free, and parallax-free.
  • Ergonomic, user-friendly controls.
  • Automatic and manual brightness settings.
  • Waterproof, but has a protective cover included for storage.
best burris fastfire iii
Photo by All Equipped


Burris Fastfire III Specifications

Burris 300234 Fastfire III

  • Type of sight: Red dot.
  • Brand: Burris.
  • Parallax detuning: Fixed parallax (total absence of parallax).
  • Illumination of aiming mark: Adjustable.
  • Attachment base: Weaver/Picatinny rail.
  • Click Value: 1 MOA.
  • Elevation Adjustment (total capability): 115 MOA.
  • Windage Adjustment 86 MOA.
  • Approximation multiplicity: 1 (non-exaggerating).
  • Country of brand registration: USA.
  • Colour: Matt Black.
  • Weight (g): 28.3.
  • Additional characteristics (power source): CR2032.
  • Clear objective lens dimensions (mm): 21 x 15.


The bright red dot makes it easy to take aim. In our opinion, ease of operation and speed, are both key factors for any gun sight. As regards both, the Burris Fastfire III excels on all counts.

Also offering you compatibility with handguns, rifles, shotguns, or as a secondary sight for other optics – such as the Burris Signature HD Spotting scope, this unit is as versatile as it is effective.

Highly recommended.

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