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Burris Optics FastFire III 8-MOA Red-Dot Reflex Sight (Picatinny/Weaver Mount)

BH #BUFF3PM8 • MFR #300236
405 reviews
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Burris Optics FastFire III 8-MOA Red-Dot Reflex Sight (Picatinny/Weaver Mount)
Key Features
  • 8-MOA Red Aiming Dot
  • Three Brightness Levels with Auto Mode
  • 1 MOA Impact Point Correction
  • 30 MOA Per Rotation Travel
The FastFire III Reflex Sight from Burris Optics features an 8-MOA red aiming dot, which is big enough to see in the daylight but won't obstruct small varmints. Three brightness levels lets you set it to your preference, or switch it to auto and the light sensor will detect the amount of available light and adjust the brightness itself. The FastFire III is made of aluminum with a matte-black anodized finish, and is waterproof and submersible. This sight comes with a Picatinny/Weaver rail mount, and mounts for a variety of rifles and pistols are also available that allow you to move the FastFire to other firearms.
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Burris Optics FastFire 3 Overview

The FastFire III Reflex Sight from Burris Optics features an 8-MOA red aiming dot, which is big enough to see in the daylight but won't obstruct small varmints. Three brightness levels lets you set it to your preference, or switch it to auto and the light sensor will detect the amount of available light and adjust the brightness itself. The FastFire III is made of aluminum with a matte-black anodized finish, and is waterproof and submersible. This sight comes with a Picatinny/Weaver rail mount, and mounts for a variety of rifles and pistols are also available that allow you to move the FastFire to other firearms.

Optical Performance
  • 1x magnification
  • 0.8 x 0.6" objective lens window
  • Fully coated optics for increased light transmission
Use and Handling
  • 8-MOA red dot with three intensity levels and an automatic brightness mode
  • 1 MOA impact point correction, 30 MOA per rotation travel
  • ±90 MOA windage and elevation adjustment range
  • Parallax-free from 10 to 150 yd
Construction Details
  • Aluminum housing
  • Matte-black corrosion and scratch-resistant anodized finish
  • Top-loading battery compartment enables battery changes without removing the sight
  • Included Picatinny/Weaver rail mount
  • Waterproof and submersible
UPC: 000381302366

Burris Optics FastFire 3 Specs

Key Specs
Reticle
8 MOA Dot
Reticle Color
Red
Power Source
1 x CR1632
Mounting
Picatinny / Weaver
Magnification
1x
General
Reticle
8 MOA Dot
Reticle Color
Red
Power Source
1 x CR1632
Sight Window Dimensions
0.8 x 0.6" / 21 x 15 mm
Mounting
Picatinny / Weaver
Optics
Magnification
1x
Parallax Setting
10 yd / 9.1 m
Anti-Reflective Coatings
,
Impact Point Correction
180 MOA (Windage & Elevation)
Adjustment per Click: 1 MOA
Physical
Environmental Resistance
Water-Resistant (Unrated)
Operating Conditions
-10 to 130°F / -23 to 55°C
Materials
Aluminum
Dimensions
L: 1.9 x W: 1.0 x H: 1.0" / L: 4.8 x W: 2.5 x H: 2.5 cm
Weight
0.9 oz / 25.5 g
Packaging Info
Package Weight
0.45 lb
Box Dimensions (LxWxH)
5.9 x 4.6 x 1.7"

Burris Optics FastFire 3 Reviews

By Spanky22
Rated 1 out of 5
Date: 2026-05-10

Terrible product, trying to put the battery in is like an act of congress and now that I have it in. Every time I shoot thecao flies off. Do not recommend

Very good red dot but…

By Brendan R
Rated 4 out of 5
Date: 2026-03-01

Fit is going to be a problem for some. That’s my only knock. I mounted this on an optic ready M&P 2.0 9mm using plate 5 and screws “C”. The S&W “Doctor” plate (#3) does not fit this optic as I was led to believe it would. I had to use a utility knife to shave down the “posts” on the 5 plate just a hair. They wouldn’t seat into the optic otherwise. The footprint was fine… front posts just a little wide in diameter. Once it was mounted though it has worked great. Has held zero with 200+ rnds thru it. The S&W provided screws have not come loose at all (but always smart to check). The 3MOA red dot is crisp (better than photo shows) and clear. I don’t notice the auto dimming making a huge difference but have only used it indoors so far. This optic has no shake awake, which I knew. But for EDC I just turn it on when I grab it to go out. On/off button is good, not great. The optic stays on, no different than a shake awake would. Seems to work exactly as description says. I like the slimmer width. It is no wider than the slide. The Swampfox it replaced was slightly wider than the slide. I like this optic a lot as long as it continues to stay mounted and hold zero. So far so good.

See any errors on this page?

question

Is this scope magnified ? If so to what power?
Asked by: Anonymous
The Burris Optics FastFire III 8-MOA Red-Dot is 1x magnification.
Answered by: John P.
Date published: 2018-08-25
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