Holosun HS403B Review (2021): Best Budget Red Dot Sight?

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If you’re looking for a reliable and inexpensive red dot sight this year, the Holosun HS403B might be one of your best options. But, is it the best one on the market? Are there other, better options?

Let’s break out the features on the HS403B to see if inexpensive equals cheap, or if this red dot truly is the perfect budget red dot.

FeaturesHolosun HS403B Red Dot Sight
BrandHolosun
ColorBlack/Flat Dark Earth
Magnification RangeUnmagnified
Reticle TypeHolographic red dot
Reticle IlluminationYes
Weight2.82oz
Dimensions2.45×1.43×1.7
Objective Lens Diameter20mm

Here’s my Holosun HS403B Review

The Holosun HS403B Red Dot Scope is a great little short-range option that offers a lot of bang for its buck.

Light, durable, and easy to use, this scope is a deal at under $200. But is it the best deal you can get?

You’ll discover the answer here in this comprehensive review of the Holosun HS403B.

Glass Clarity & Reticle

Glass clarity is nicer than you would expect on a budget.

The lens is multi coated, increasing clarity and light transmission, and that little red dot you want to sight on your target is crisp and clearly outlined.

The reticle itself is a 2 MOA holographic red dot reticle. This is pretty standar, although it wouldn’t be ideal for someone with astigmatism.

The Holosun HS403B has 12 brightness settings so you can shoot in just about any lighting conditions short of full night.

It’s also got Shake Awake. If you move your gun, the reticle will turn on. And the auto sleep timer (8 hours) means you won’t be wasting battery.

Not that you have to worry much about that, with the 50,000 hour battery, but better safe than sorry.

Eye Relief & Eye Box

A red dot reticle like this has unlimited eye relief.

No matter how far you are from the scope, you’re going to be able to see the full field of view. And that means no worry about getting clocked in the eye when your gun recoils. You shoot with both eyes open, too.

Durability

This is one durable little scope. The Holosun HS403B is made from corrosion-resistant aluminum. It’s shock resistant, and waterproof up to a meter deep. I didn’t personally test that last one, but I can tell you that you’re good to go in any kind of weather.

Elevation & Windage Knobs

Knobs are small and low profile.

The obvious benefit to this is that you’re not going to risk knocking them into things. The downside is that they can be a little difficult for the thicker-fingered crowd. But they turn smoothly and they’ll hold zero even if you drop the gun (Yes, I have personal experience here).

They adjust in .5 MOA increments, and the turrets are capped rather than tactical. That may be a drawback to some, since it means you’re not going to be adjusting on the fly. But the simple aim and shoot system of the red dot reticle keeps it useful for home defense.

Parallax & Magnification

This is a 1x magnification scope, which means you’re going to see a 100% increase in the size of whatever you’re looking at. Obviously that’s not going to do much at distance, but that’s not what this scope is intended for. It has a similar purpose to a reflex sight. It does have the benefit of being parallax free.

Mounting & Rings

The scope comes with two mounts, one standard, and one for lower profile rifles. Both mounts fit a standard Pic rail. Lens caps come with the scope and so do batteries.

Price

You can get the Holosun HS403B for about $150 on either OpticsPlanet or Amazon.

Holosun HS403B Micro Red Dot Sight 2 MOA Dot Reticle
18 Reviews
Holosun HS403B Micro Red Dot Sight 2 MOA Dot Reticle
  • Super red reticle LED provides a versatile range of intensity for the brightest environments down to no-light situations with this sight having 12 brightness settings 10 daylight and 2 night vision
  • Shake Awake technology instantly activates the LED at the slightest movement and shuts the LED off during periods for motionlessness
  • Multilayer Coatings, 1x magnification allow for little phase difference while facilitating maximum light transmission and wear resistance

Is the Holosun HS403B Red Dot for you?

Okay, so this red dot has a lot of great features. Truthfully, it has a surprising amount of great features considering its low price. But, is it the best budget option available for you?

Looking at comparable options currently on the market from well-known brands like Vortex, Sig Sauer, and Bushnell, Holosun has them beat on this one. There are several features on the Holosun that are superior to its competition.

The battery life on this red dot is amazing. It has 12 brightness settings, and Shake Awake. To top it all off, the Holosun HS403B has premier durability features that make it not only a quality product but also a budget-friendly, long-lasting purchase.

Holosun HS403B Micro Red Dot Sight 2 MOA Dot Reticle
18 Reviews
Holosun HS403B Micro Red Dot Sight 2 MOA Dot Reticle
  • Super red reticle LED provides a versatile range of intensity for the brightest environments down to no-light situations with this sight having 12 brightness settings 10 daylight and 2 night vision
  • Shake Awake technology instantly activates the LED at the slightest movement and shuts the LED off during periods for motionlessness
  • Multilayer Coatings, 1x magnification allow for little phase difference while facilitating maximum light transmission and wear resistance

I can say with confidence that the Holosun HS403B truly is the best budget red dot sight available in 2021.

Now It’s Your Turn

I hope you enjoyed my Holosun HS403B review.

Now I want to turn it over to you:

What do you think about the Holosun HS403B optic? Or perhaps you already bought it and would like to share your thoughts.

Either way, let me know by leaving a quick comment down below.

FAQ

Does the Holosun HS403B have Shake Awake?

Yes, the Holosun HS403B has Shake Awake.

What battery does the Holosun HS403B take?

The Holosun HS403B uses a CR2032 Lithium Coin Cell Battery.

Is Holosun a Chinese company?

No, Holosun is an American company.

Are Holosun Optics any good?

Holosun is a very established and reputable optics manufacturer. They produce top-tier products, and they are widely regarded as one of the best companies in their industry. They have many other scopes and sights.

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