Burris Fastfire 3 VS Vortex Viper [Which One is The Right Optic For You!]

When two prestigious lineups go head to head against each other, both teams have high stakes to play here. Burris Fastfire lineup has been providing us with great sights for years now. The same goes for Vortex Viper. What happens when you put Burris Fastfire 3 VS Vortex Viper against each other?

Curious, right? Ha-ha, me too. Red dot reflex sights have been on the list of tactical shooters forever now.

Without further ado, let’s get this party started.

Burris Fastfire 3/ Vortex Viper – Outlooks

Burris Fastfire 3/ Vortex Viper – Specs

SpecsBurris FastFire 3Vortex Viper
Weight1.5 Oz1.03 Oz
BatteryCR2032CR2032 Lithium
Adjustments6 Brightness SettingsWindage, Elevation, Brightness

Burris Fastfire 3 VS Vortex Viper – Differences

  • Vortex Viper is lighter than Fastfire 3.
  • Fastfire 3 has two options, 3MOA or 8MOA red dot. While Viper only comes with 6MOA.
  • Viper has higher Windage adjustments.
  • Viper is shorter slightly.


Burris Fastfire 3: Burris is quite strict when it comes to quality. Their QC has been improved and is on point recently. The lens used here is fully multi-coated. It’s also water and shockproof. If you were worrying whether it can take a hit of your AR rifles, you don’t have anything to worry about.

Vortex Viper: Viper features an HD lens that is fully multi-coated to be scratch-resistant and fog-resistant. Vortex is one of the best brands when it comes to lens making. If somehow you have a complaint about this mouse, I am sure it won’t be about the lens at all.


Burris Fastfire 3: It’s the third iteration of Fastfire from Burris. They had time to change many things on this sight and make significant upgrades. Burris didn’t shy away from doing those upgrades. Fastfire 3 features a fabulous build quality with durable aluminum.

Anodization is on point. There is no scratches or other defects present on the sight.

Vortex Viper: A short-range sight has to be durable. It doesn’t have much to protect the lens from scratches or other harm. If this is not durable at all, then you will have issues keeping this sight for a long time.

Don’t worry, I am not saying Viper is a fragile sight. In fact, it’s one of the most well-crafted aluminum red dot sights you can buy right now. The price is well justified for the build quality alone. On top of that, it performs fabulously with high accuracy and vision.


Burris Fastfire 3: The Fastfire series has always been a hot topic in the community. Their performance is super good. They never fail to live up to your expectations. On a 100 yards or so range, this sight is incredibly accurate. The accuracy is scary sometimes. Of course, you can tune the windage and elevation as well. In fact, you should find your ideal windage and elevation by yourself. Tune this sight for yourself for the best performance.

Vortex Viper: I know many people will have doubts about the performance of this sight. I mean, red dot sight usually doesn’t cost this much. Rest assured, the performance of this sight is unmatchable. The amount of adjustments present on this sight is quite astonishing. You can adjust windage, elevation, and brightness to your heart’s content. Match the performance with your gun for the best performance.


Burris Fastfire 3: The total length of Fastfire 3 is around 1.9 inches. Slightly shorter than the 2inches mark. This is the perfect length to use on a pistol or on top of a scope. You can also use this sight as a canted sight if you so wish. The possibilities are endless.

Vortex Viper: This is slightly smaller than Fastfire. The total length of the Viper is 1.8 inches. The length difference is so small, it’s not noticeable at all. I have to admit, it looks fabulous on top of a gun. Sure, you can also use this as a canted sight.


Burris Fastfire 3: The weight of Fastfire 3 is around 1.5oz. It’s not too heavy for small firearms. You can very well place it on top of a handgun and feel nothing changed. Of course, the look and the performance of the gun will improve. About the weight, it will be quite similar to the previous one.

Vortex Viper: It’s a red dot sight from Vortex that is made for several types of guns. It supports handguns and rifles as well. However, you will be happy to know, it doesn’t weigh the same as a venomous Viper. The weight of Viper is only 1.03oz. That’s way lighter than what Fastfire 3 weighs.

If weight is your main priority, then Viper is the one to go for. Weight distribution is good on both. So, you won’t miss too much going for either one.

Burris Fastfire 3/ Vortex Viper – Videos

Burris Fastfire 3 VS Vortex Viper – Summary

To summarize Vortex Viper vs Burris Fastfire 3 in one sentence, both are good. Either choice is fine. There is a big difference between the two, that’s the price.

If, your budget doesn’t allow you to get a Viper, don’t feel discouraged, Fastfire 3 is equally good. If not, it is better for some people.

Viper is obviously, the choice for people that prefer a lighter and shorter sight.

Now, choose your poison Neo. You can do it. Just the difference here is, that both of them are the right choice.

Leave a Comment

Your email address will not be published. Required fields are marked *