Sig Romeo 5 vs Holosun : What is The Difference Between Them?

If you are an optic fanatic, then you probably have come across these two brands, Sig Sauer and Holosun. At some point of your shooting life, you have always thought of getting the most out of your optic without going bankrupted.

Even though it took me a while to choose, but finally I have come up with a sweet war between two most-similar optics from those brands. Holosun and Sig Sauer are two of the most trusted manufacturers of optics for years now.

Holosun and Sig Romeo, both stands for affordability with high-quality premium-grade features. These budget-friendly optics consists all the necessary features combined with technologies to make your life easier.

For a very subtle difference between both, holosun optics have the most superior battery life up to 100k hours compared to Sig Romeo which have 50k hours at most.

Alternatively, the housing material of Sig Romeo 5 has more toughness and durability with airplane-grade aluminum, compared toHolosun’s T6 aluminum. Let us look comprehensively at the sig romeo 5 vs holosun features, pros and cons and comparisons.

Sig Romeo 5 vs Holosun: Comparison table

Sig Romeo 5 vs. holosun 403b

The reticle of sig Romeo 5 and holosun 403b both has 2 MOA dots for perfect aim while shooting from a distance. Their power source is the CR2032 battery, where sig Romeo has battery life for 40,000 hours and holosun 403b has 50,000 hours. 

Both are made from rugged yet lightweight aluminum material. However, the Holosun 403b is lightweight compared to Sig Sauer Romeo 5. Other than that, both are each other’s tough competitors when it comes to price because both come under $200.                                                                                                        

Sig Romeo 5 vs. holosun 403R

Both the optics are made from aluminum, where Romeo 5 has aircraft-grade one, and holosun 403R has T6061 housing. They run with a CR2032 lithium-ion battery. But Romeo has 40,000 hours of battery life, and 403r has 100,000 hours of battery life.

They operate parallax-free with unlimited eye relief on 1x magnification. Alongside, the red dot is 2MOA for more precise targeting. Therefore, you get the longest battery life with the Holosun 403r. 

Sig romeo5 vs. holosun 510c

Sig Romeo 5 and holosun 510c both have aluminum housing material for high durability. However, the 510c has 100k hours of battery life, which is twice as much as the Romeo 5’s 50k hours. The holosun 510c is a bit weightier than the sir Romeo 5.

Romeo 5 has a spectra coated lens, and holosun 510c has a multi-coated lens that helps to prevent glares and ensure maximum light transmission. Moreover, both have 1x magnification and 2MOA red dot for target acquisition.

Holosun HS510c vs. sig Romeo 5

The Holosun 510C has 2 MOA dots with 65+ MOA rings, whereas Romeo five also has 2 MOA red dots but no rings. Romeo 5 has slight motion activation, whereas 510c runs on full-motion activation.

Romeo 5’s power source is the battery, and Holosun 510c is powered but both battery and solar. Plus, 510c has three reticle options, and you don’t get reticle options with the Romeo 5.

Sig Sauer SOR52001 Romeo 5 Review 2022

The Sig Sauer 5 has incredible durability with an aircraft aluminum build and has water immersion up to a meter; it means you can shoot with it in the rain. The battery life of this optic is stunningly high, with some battery-saving features included.

The MOTAC feature saves battery by auto turning off the red dot after ten minutes of inactivity. To add up, Romeo 5’s CR2032 battery has a life of 40,000 hours, featuring eight brightness level settings for daylight and 2 for night visioning. 

It is sustainable through severe environmental conditions, with its fog-proof, waterproof, and shockproof features.

Furthermore, the optic lens has a Spectracoat coating that allows the user to adjust the brightness level on the lowest setting yet have bright and clear visibility.

The red dot’s reticle has 2 MOA dots, which is brilliant for faster accuracy with targets. The Romeo 5 packaging comes with a low and high mount that makes it suitable to use with rifles, shotguns, pistols, caliber carbines, and crossbows.

Features of Sig Sauer SOR52001 Romeo 5

Weatherproof: The Romeo 5 is 100% waterproof, rated with IPX-7 for no water immersion up to a meter. Moreover, the lens has anti-reflective glass on top for a fog-proof performance in winters, which is also proven by the IPX-7 rating.

Lens: Lens has Spectracoat coating to acquire high-class visibility even in the least brightness. This feature prevents you from setting the illumination too high that consumes battery power.

Single-Piece Tube: It has a single-piece tube design, for this mounting becomes easy with integrated M1913 Picatinny interface. Both low and high-profile mounting rails are included in the package.

Build: None other than aircraft-grade aluminum is used in the milling of Romeo 5 to provide massive strength to the optic. It also concludes that the optic is shock-proof for its robust construction; hence, components will be harmed from a massive fall; as the shock gets absorbed. The outer black aluminum coating is scratch proof.

Locking Illumination: Romeo 5 has ten illumination settings that include eight settings for daylight and 2 for night vision. The special MOTAC illumination for the battery-saving purpose by turning off auto while unused for 10 minutes.

Reticle Type: 2 MOA red dot along with 1x magnification provides faster and accurate aiming in no time, no matter how the target is.

Easy adjustments: the windage and elevation settings are easy to adjust, and the mounting with Picatinny rails is effortless.

Battery-saving: the optic is very power-saving with the MOTAC and spectra coating features. 

Technical features

• Magnification: 1x
• Objective lens diameter: 20 mm
• Eye-relief: Unlimited
• Illumination settings: 8 for daytime 2 for night time 
• Battery life: 40,000 hours

Pros

• Has incredible durability
• Fog and water-resistant
• It comes with high and low mount
• Turns on with motion sensor 
• It has premium battery-saving features called MOTAC and a Spectra-coated lens.

Cons

• The mounts included are not durable enough.

HOLOSUN – HS403B Micro Red Dot Optic (2 MOA) Review 2022

Like any other holosun optic red dot, this HS403B micro red dot from the manufacturer won’t disappoint you with its valuable features. Undoubtedly, holosun optics are the most affordable ones that include all the necessities along with standard technologies.

This tube-style classic red dot is constructed from 6061 T6 aluminum alloy that provides a robust yet lightweight housing weighing only 4.3 ounces. 

It is coated with Micro arc oxidation that lays a dense oxide film on top to protect the housing from the weather. Moreover, this coating makes the optic scratch-proof too.

It has an IPX-6 rating for water immersion up to a meter and dust resistance. Furthermore, you are getting an incredibly extended battery life of up to 50,000 hours in this budget-friendly red-dot.

The optic has 12 different light settings, where ten for adjusting daylight brightness and two for night-vision viewing. The reticle of the optic has a 2MOA dot, which along with 1x magnification, will provide greater accuracy with shooting from a long distance.

The lens is multi-coated to prevent glare in broad daylight and enable maximum light transmission.

The holosun HS403B comes with a low-profile and lower co-witness mount inside the package, which makes it suitable to mount on shotguns, carbines, and even rifles. 

Features of HOLOSUN – HS403B Micro Red Dot Optic

Weatherproof: The Holosun HS403B is waterproof up to 1 meter and dust-proof, rated by IPX-6. So, you can use it in the rain and windy days without hesitation.

Lens: Lens is multi-coated for this optic, which helps to prevent glare in high-light conditions and allows sufficient light transmission for perfect shooting experiences.

Battery: The CR3032 coin battery used in the operation of the optic has a life expectancy of 50,000 hours. With low illumination settings, some users have experienced up to 100,000 hours of usage. 

Build: This affordable optic is made from 6061 T6 aluminum that provides ultra-lightweight structure along with durability. The outside of this aluminum is Micro arc oxidation, which is a protective film against rust and corrosion, also scratches.

Illumination settings: Holosun has 12 illumination settings that include ten settings for daylight and 2 for night vision. You should keep the brightness at that point where the reticle dot is visible in your eyes.

Reticle Type: Finally, the optic has 2 MOA red dot and 1x magnification to provide faster and accurate aiming in no time, no matter how the target is.

Affordability: No doubt that you will have a second red dot optic with such top-notch features to linger on.  

Battery life: The battery life is commendable is such a price that would shock anyone.

Technical features

• Magnification: 1x
• Objective lens diameter: 20 mm
• Eye-relief: Unlimited
• Illumination settings: 10 for daytime 2 for night time 
• Battery life: 50,000 hours

Pros

• It is milled with toughness yet is lightweight
• Protected with a film of dense oxidization for weather and scratch-proofing
• It comes with both types of mounting rails
• A high-quality optic with a very affordable price
• Battery life is incredibly high

Cons

• Does not have other reticle options

What Is The Difference Between Sig Romeo 5 And Holosun

Let us hop into a detailed comparison between sig Romeo 5 vs. holosun 403b, where I will modify each of the classifications I possibly can find after extensive research.

Sig Romeo 5 review

Companies: The Sig Sauer brand that made Sig Romeo 5 is a German brand.

Construction: Sig Romeo 5 is made from airplane-grade aluminum material, which provides excellent ruggedness. No fall or hit can dent or damage the optic, and you can rely highly on sig Romeo 5’s milling.

Durability and Toughness: The optic red dot is made tough and durable with aircraft-grade aluminum. Its windage and elevation turrets are protected with durable framing to protect against damage.

Accuracy: The low parallax of Romeo 5 provides top-notch accuracy during your aim does not matter what your viewing angle is; the red dot is kept parallel

Eye Relief: Since the optic has only 1x magnification, an unlimited eye relief provides comfortable sighting over distance views. 

Fit and Adjustment: The low mount and high mount Picatinny rails included in the package enable the sig Romeo 5 to fit and mount on to all kinds of shotguns, calibers, crossbows, and some rifles.

Battery Life: The optic has 50,000 hours of battery life. You can save battery power consumption with solar power usage in broad daylight. Also, it has the MOTAC feature and spectra coating to save battery with auto shut-off within 10 minutes.

Waterproof and Temperature testing: The Romeo 5 is considered waterproof and has IPX-7 ratings for providing complete water immersion up to one meter

Glass Clarity and Red Dot: The lens of Romeo 5 has a Spectracoat coating that provides immense light transmission in broad daylight. The reticle has 2 MOA red dots that accurately target the distance, provided with 1x substantial magnification.

Overall performance against price: Romeo 5 comes under everyone’s budget for a high-quality, affordable optic, but its features match similar to high-end optics.

It’s built rigged, is compact and lightweight, and consists of years of battery power. With the durable milling along with dozens of user-friendly specifications, this is an absolute must-have red dot. 

Warranty: Sig Sauer provides all its optics, including Romeo 5, a warranty on components for five years only. However, they do not claim to provide a warranty for intentional damage, theft, and modifications.

Holosun HS403b review

Companies: Holosun is a china-based optic manufacturer that sells top-quality features in optics at an affordable price. 

Construction: The 403b is constructed from 6061 T6 aluminum alloy that provides a durable yet lightweight housing. The optic weighs only 4.3 ounces.

Durability and Toughness: The aluminum build provides enough durability to withstand the harshness of shooting. The exterior is further coated with Micro arc oxidation, a protective film against rust and corrosion, and scratches.   

Eye Relief: The optic has unlimited eye relief with 1x magnification on the side. It helps you to adjust the distance sighting to your comfortable position. 

Parallax: The optic is parallax-free, which means you can sight close-distance shooting. It means your dot won’t move from the target even if your hands shake or move.

Fit and Adjustment: The holosun HS403B comes with a low-profile and lower co-witness mount inside the package, which makes it suitable to mount on shotguns, carbines, and even rifles. Also, its adjustment per click is 0.5 MOA.

Battery Life: This holosun uses a CR3032 coin battery during operation of the optic has a life expectancy of 50,000 hours. With low illumination settings, some users have experienced up to 100,000 hours of usage.

Waterproof and Temperature testing: The Holosun HS403B is waterproof up to 1 meter and dust-proof, rated by IPX-6. Its storage temperature is -40 to 70 degrees C, and the working temperature is 30 to 60 degrees C. 

Glass Clarity and Red Dot: The lens is multi-coated, allowing excellent light transmission and preventing glare in extreme sunlight. At the same time, the red dot of 2 MOA allows for accurate shooting over long-distance targets.

Overall performance against price: Holosun is the most budget-friendly optic option that contains all the world-class features. With its most simple design, the optic is incorporated with several high-fi configurations, which may make you bankrupt if you buy from another brand.

This optic is suitable for many shooting purposes and serves efficiently with the features.

Warranty: Holosun provides a limited lifetime warranty to its optics that claims to fix any manufacturer’s purchase defects. However, the holosun warranty is only for the first owner who is registered under the product.

You won’t get a warranty on the optics’ optical illuminations because the optical glass itself has five years warranty. The batteries also do not come under warranty.

Buying guide of Sig Romeo 5 vs Holosun

In the review war of holosun hs403r vs. sig Romeo 5, I have a buying guide to pick the right kind of optic for yourself.

Accuracy

The accuracy of a red dot optic is determined by the reticle and magnification. So, even if your optic does not have high magnification, at least look for the one that has unlimited eye relief.

Magnification level depends from person to person on what distance shooting they do. 

Durability

Durability is very important while you pick any red dot optic because you are going to have lots of movement while shooting. In that case, the optic has a high chance of falling on the ground, which can cause damage to internal components or dent externally.

Therefore, pick the one with the utmost ruggedness and toughness that can survive the falls. Red dots made with certain alloys of aluminum are the most reliable in terms of this feature. 

Battery life

Having years of battery life in your optic is much more than a relief. Along with that, look for some battery-saving options features in the optic too. Also, the illumination settings with battery-saving features are plus points.

Weatherproofing

Weatherproofing means, you can use your red dot in all kinds of weather without fail; whether it is windy, rainy, foggy or sunny outside. A waterproof and fog-proof and dust-proof lens glass is crucial and is optic to withstand external weather.

Video Review

Frequently Asked Questions

Does Holosun make SIG optics?

Sig Sauer is mainly a German brand, and its origin is there in Europe. Some of the sig optic models are manufactured by holosun, which is a Chinese factory.

Does Holosun make SIG Romeo?

Some of the SIG Romeo optics are made in the Holosun factory, which is located in china. Holosun makes and assembles all the SIG optics with top-notch quality and provides Sig Sauer labels on them.

Is Holosun any good?

Holosun makes the most affordable optics in the market with top-notch features. This cost-effective brand is great with durability, accuracy, and weatherproofing, which you would expect in any high-end optic set.

Which Holosun is best?

Holosun optics comes with a great value for money, and its overall best optic is the 510C that has a 2MOA dot with 65+ MOA rings, motion activation, and power is both battery and solar. Plus, it has three reticle options.

Are SIG optics made in China?

Since sig has a wide range of optics in their range, therefore, not all, but only the optics of sig Romeo 4 and 5 optics are manufactured in China by a factory named Holosun.

Is the Romeo 5 parallax-free?

Yes, Romeo 5’s reflex sights are parallax-free, which means it keeps the sight on target with the red dot even if you move your hand or body. Parallax-free reflexes won’t affect you if you do short-distance shooting, but they will be helpful in long-distance shooting.

Are Sig Sauer pistols made in Germany?

Sig Sauer is a German brand, and its headquarter is in Germany. However, the pistols are not made there; instead, they are manufactured and assembled in China so that they can sell to you at a low price.

Which is better red dot or green dot?

Red dots are better than green dots because they are more visible in or off lights. They catch light faster, which means faster targeting and faster sight picture.

Is Holosun waterproof?

Yes, holosun optics have an IP rating for water immersion up to 1-meter. Even if some optics are not IP rated, but their outer coating makes them water repellent.

What is the best Holosun red dot?

Holosun optics comes with a great value for money, and its overall best optic is the 510C that has a 2MOA dot with 65+ MOA rings, motion activation, and power is both battery and solar. Plus, it has three reticle options.

What’s better red dot or holographic?

Red dots are extremely power-saving compared to holographic. Because the holographic requires a laser to power their holograms, leading their battery life up to 1,000 hours; whereas, red dots have up to 50,000 hours of battery life.

Does the military use holographic sights?

Not every military, but the USA’s marine army is exporting a large amount of holographic optics to the soldiers in Iran and Afghanistan.

Conclusion

There is nothing to be confused about while choosing your desired optic after reading my article on Sig Romeo 5 vs. Holosun. Both the optics are super affordable, equipped with premium features, and are user-friendly.

So, which one to choose? If you want high toughness and rigidity in your optic, then go for the Sig Romeo 5. However, if you want a glare-free lens and even higher battery life, then buy the Holosun HS403B microdot optic.

Apart from these, there are no other significant differences between the amazing optics. If you think I am missing something in these two optics, then feel free to let me know below. And do give your opinion after buying your favorite one.