Sig Sauer Romeo MSR Vs Romeo 5

Last Update:

We independently review everything we recommend. When you buy through our links, we may earn an affiliate commission.

Welcome to the review of the Sig Sauer Romeo MSR vs Romeo 5, and get the best one for your firearm today.

Navigating all of your alternatives can be challenging when selecting a red dot sight for your firearm. The Romeo 5 and Romeo MSR are two models Sig Sauer customers frequently choose. Even though both of these sights offer common characteristics, they also differ significantly in some important ways, which could make one of them a perfect match for your specific requirements.

In this review, we’ll compare the Romeo 5 and the Romeo MSR to assist you in determining which is ideal for you. We’ll examine their technicalities, robustness, usability, and efficiency. You’ll have a stronger grasp on the benefits and downsides of each sight by the conclusion of this evaluation, resulting in being capable of selecting the ideal one for your firearm with confidence.

What Is Inside The Box Of Sig Sauer Box?

The box of Sig Sauer sights contains very few accessories that are helpful to have once the box has been opened.

Sig Sauer Romeo MSR

  • ROMEO-MSR Compact Dot Sight
  • CR1632 Coin Cell Battery
  • 1.41” Torx T10 M1913 Riser Mount
  • Battery Removal
  • Sight Adjustment Tool
  • Torx Mount Multi-Tool

Sig Sauer Romeo 5

  • ROMEO 5 Compact Sight
  • Low Profile M1913 Torx mount
  • 1.41” Absolute Co-Witness Riser Torx mount
  • Lens Cover
  • Torx installation tool
  • Lens Cloth
  • CR2032 Lithium Coin Cell Battery

Specification Chart: Sig Romeo 5 vs MSR

Sig Sauer Romeo MSRSig Sauer Romeo 5
Dot Size2 MOA Dot2 MOA Dot
Size (L x W x H)3.07 x 1.42 x 2.64 in /78 x  36 x 67 mm2.47 x 1.5 x 2.527 in / 62.7 x 38.1 x 64.2 mm
Clear Aperture0.787 in / 20 mm0.787 inches / 20 mm
Objective Lens Diameter20 mm20 mm
Illumination Settings10 for Day time / 2 for night vision.8 for Daylight / 2 for Night Vision.
Illumination adjustment ManualPush Button
Elevation Adjustment Range+/- 50 MOA+/- 40 MOA Minimum
Windage Adjustment Range+/- 50 MOA+/- 40 MOA Minimum
Weight5.5 oz / 154 g (Including Mount)5.1 oz / 145 g (with 1.41” riser mount and battery)
WarrantySIG SAUER Limited 5-Year WarrantySIG SAUER Limited 5-Year Warranty

What’s The Difference Between Romeo 5 vs MSR

Although both Sig Sauer Romeo MSR and Romeo 5 are extremely good red dot sights, they diverge in some significant ways.

The Sig Sauer Romeo MSR is a sight for use with a modern sporting rifle (MSR) and other comparable firearms-specific designs. The battery life of Sig Sauer MSR is 20k hours, as it is equipped with the CR-1632 battery. Additionally, the Romeo MSR has a low-profile mount, which makes it the perfect option for armaments with low-bore shafts. Additionally, it is approved for use with ammunition up to 0.308 calibers.

The Sig Sauer Romeo 5 is an adjustable red dot sight that can be used with a variety of weapons. The Sig Sauer Romeo 5 has a better battery lifespan than the Romeo MSR. Its battery will last for 40k hours and uses a motion sensor system to save battery life. Along with having a Picatinny mount, the Romeo 5 can be assembled on a range of guns, including sniper rifles and assault rifles. Although it is not intended to be used with larger calibers, it is still a sturdy and credible choice.

Summary: The Sig Sauer Romeo MSR is deliberately developed for advanced sporting rifles, whereas the Sig Sauer Romeo 5 is a flexible red dot sight that is compatible with a wider variety of weapons and has a universal mount. Furthermore, the Sig Sauer Romeo MSR is designed to be compatible with significantly bigger calibers, whereas this is not the case with the Sig Sauer Romeo 5. In addition to these, the Romeo 5 is better in terms of battery life and has a MOTAC feature.

Comparison Of Benefits – Sig Romeo MSR vs Romeo 5

1. Size And Weight

Which sight has better size and weight, Romeo MSR or Romeo 5?

Sig Sauer Romeo MSR

The Sig Sauer Romeo MSR has good dimensions and weight, but let’s see if it has less dimension and weight than the Romeo 5. The Romeo MSR has a length of 3.07 inches, a width of 1.42 inches, and a height of 2.64 inches. It weighs 5.5 oz which is not so heavy, not so light.

Sig Sauer Romeo 5

The Sig Sauer Romeo 5, unlike Romeo MSR, has better dimensions and weight. It has a length of 2.47 inches, a width of 1.5 inches, and a height of 2.64 inches. It is 5.1 ounces heavy but less heavy than the Romeo MSR.

Winner: Sig Sauer Romeo 5

2. Body Construction

Do the Sig Sauer Romeo MSR and Romeo 5 offers the same level of durability?

Sig Sauer Romeo MSR

The Sig Romeo MSR red dot sight has a durable construction that prevents the device from getting damaged. Its body is crafted with aluminum material which is the strongest material used in products like these sights. It has an IPX7 rating, which makes this sight waterproof. So, it will be easy for you to use this optic where there is haze or snow.

Sig Sauer Romeo 5

The Romeo 5, a well-liked red dot sight made by Sig Sauer, has a reputation for being very durable. High-quality components, like aircraft-grade aluminum, were used in the construction of the sight, which is made to withstand powerful recoil and impact.

The Romeo 5 has a water-resistant and haze-proof architecture, which enables it to function in a wide assortment of meteorological conditions. Additionally, it has a shock-proof design that can sustain harsh use and effect.

Numerous shooters report that the Romeo 5 maintains zero well above time and ought not to be adjusted frequently. But it’s crucial to remember that how an optic is being used and retained may have a significant impact on how long it lasts.

Broadly speaking, the Romeo 5 is a highly esteemed optic in aspects of sturdiness, and it ought to be capable of withstanding repeated use and misuse.

Winner: Sig Sauer Romeo 5

3. Battery Power

Which sight has more battery power?

Sig Sauer Romeo MSR

The Romeo MSR, made by Sig Sauer, is driven by one CR1632 power supply. The battery life of the Romeo MSR largely depends on the lighting configuration utilized, but Sig Sauer asserts that the battery may operate for up to 20k hours on the least luminance configuration. The battery performance is reduced but still admirable at about two hundred hours on the maximum luminance configuration.

It is important to note that the battery performance of any sight can be influenced by things like temperature and consumption habits. Besides that, it is a smart option to have backup batteries on the side, especially if you plan to use the optic for important tasks. In general, the battery life of the Romeo MSR is praised for being consistent and robust, especially at lower brightness levels.

Sig Sauer Romeo 5

One CR2032 battery powers the luminance system of the Romeo 5, which is made by Sig Sauer. The battery performance of the Romeo 5 largely depends on the illumination set – up, but Sig Sauer alleges that the power supply is capable of lasting up to 50,000 hours on the minimum brightness setup. The battery life is reduced but still remarkable at about 40–50k hours, just on the highest illuminance setting.

Winner: Sig Sauer Romeo 5

4. Brightness Power

How many illumination settings are there?

Sig Sauer Romeo MSR

The Romeo MSR has a varying luminance environment and a total of 12 luminance settings. The illuminance settings can be modified using the plus and minus buttons located on either side of the sight. The minimum luminance setting is very gloomy and only appropriate for low-light conditions, whereas the maximum brightness setup is bright and sufficient to see in broad daylight. 

It is important to remember that various elements, such as light levels and the shooter’s specific eyesight, can impact how vibrant any optic is. However, a lot of users claim that even in extremely bright daylight, the Romeo MSR’s luminance system produces a discernible reticle.

Sig Sauer Romeo 5

There are ten different illumination settings for Romeo 5’s illuminance setting. The Romeo 5’s illumination system is built to deliver a crystal-clear and sharp reticle in a range of different lighting. It has a MOTAC feature that aids in battery preservation.

On the whole, the Romeo 5’s illuminance power is regarded to be exceptionally good, with a wide range of options that can cater to various lighting circumstances.

Winner: Sig Sauer Romeo 5

5. Glass Clarity

Which glass view is more clear?

Sig Sauer Romeo MSR

The Romeo MSR is widely regarded as having very good glass clarity. The site has a luxurious, fully multi-coated lens that’s intended to give a clear, accurate picture of the target.

Romeo MSR’s lens system is designed to maximize transmittance while reducing glare and deformation, potentially resulting in a sunnier and sharper sight picture.

The Romeo MSR is thought to have very great glass clarity overall, with a premium lens system that is optimized for precision and illuminance.

Sig Sauer Romeo 5

A top-notch, fully multi-coated lens scheme is included with the Romeo MSR and is aimed at offering a target object that is crisp and detailed. The Romeo 5’s lens system is enhanced to decrease glare and disruption while increasing visible light. With a rising lens system that is streamlined for clarity and luminance, the Romeo 5 is thought to have very good glass clarity all around.

Winner: Draw

6. Reticle

Which sight has a better reticle size?

Sig Sauer Romeo MSR

The Romeo MSR red dot sight has a 2 MOA dot reticle that’s meant for quick and simple improved accuracy. The reticle is clear as well as sharp, which can aid shooters in making exact and precise shots.

Sig Sauer Romeo 5

Romeo 5, a well-known red dot sight made by Sig Sauer, has a 2 MOA dot reticle which is anticipated for rapid and simple target identification. The dot is sharp and distinct, which can aid shooters in identifying potential shots. For red dot sights, the 2 MOA dot reticle is a popular suggestion as it strikes a decent mix between speed and pinpointing. 

Winner: Draw

Price Comparison: sig msr vs romeo 5

The price levels of the Romeo MSR and Romeo 5 may change based on the retail outlet and any existing promotional campaigns or special offers. 

The Sig Sauer Romeo MSR and Romeo 5 are reasonably priced rather than costing a fortune. The Sig Sauer Romeo MSR costs less than 130 dollars, whereas the Romeo 5 costs less than 150 dollars. 

The Sig Sauer Romeo 5 costs an additional $20, but its MOTAC feature is worth the expense. Both sights are affordable to many other shooters who pay $300 to $400 for sights from other manufacturers.

Comparison Of Drawbacks – Sig Sauer Romeo MSR Vs Romeo 5

Although the Romeo MSR and Romeo 5 are absolutely superb red dot sights, they do have some drawbacks that customers should be conscious of.

Sig Sauer Romeo MSR Sig Sauer Romeo 5
Given its hefty price, the Romeo MSR might be out of reach for certain shooters.The Sig Sauer Romeo 5 is a non-magnifying sight, which means that it has no choice for optical zoom.
The Romeo MSR has a powerful battery, but it doesn’t last as long as certain other red dot sights are readily accessible.The Romeo 5’s reticle may become obstructed or incredibly hard to see in some lighting situations, especially in very direct sunshine.
Some shooters have voiced concerns about the sight’s sturdiness over the moment, along with matters with the illumination source.Although the Romeo 5 is usually well-built, a few consumers have mentioned problems with the sight’s long-term sturdiness.
The Romeo MSR is destined for a close-range shootout and doesn’t come with any magnifying possibilities.

Bottom Line

To sum up, Sig Sauer, a credible production company in the weapons industry, produces the Romeo MSR and Romeo 5 red dot sights, both of which are top-notch.

The Romeo MSR is primarily designed for the contemporary sporting rifle platform, with a broader field of view, an extended battery life, as well as more powerful construction quality than that of the Romeo 5. Additionally, it has a height-adjustable mount that makes it simple to use with iron sights.

However, the Romeo 5 is much more portable and lightweight, which makes it an excellent pick for use on handguns or relatively small carbines. Additionally, it costs slightly fewer dollars than the Romeo MSR.

Subjective values and the envisioned usage of the red dot sight will largely decide which option is preferred. If you’re searching for an additional powerful and flexible option that’s compatible with a variety of weapons, the Romeo 5 could prove to be a wiser choice. If you’re actively searching for a red dot sight for an emerging sporting firearm, the Romeo MSR’s larger viewing area and movable Mount may seem more enticing.


What does Romeo-MSR stand for?

The ROMEO-MSR is a miniature encased red-dot or green-dot sight crafted for MSR, hunting rifles, and tactical & Military purposes.

Why is the Sig Sauer Romeo 5 so expensive?

The Romeo 5 offers exceptional features at an economical cost. The Romeo 5 offers significant glass clarity, quality and reliability, and sturdiness for about $150, making it well-suited to the cost.

Which Sig Sauer red dot is the best?

The Trijicon RMR is the right choice due to how tough and reliable it is designed. Additionally, it has a very prolonged battery life and comes in a variation of reticle options.

Has the shake-awake feature been added to Romeo-MSR?

No, this feature has not been added to the Sig Sauer Romeo MSR. The only way to turn off the Sig Sauer Romeo 5 is the manual way, where the user uses illumination control buttons to turn off the sight.

Where is the Romeo-MSR by Sig Sauer manufactured?

All Sig Sauer Optics, including the Sig Sauer Romeo MSR, are manufactured in China.

One Request?

I worked hard on this post to help the shooters community. it would help me a lot if you consider sharing it on social media network

BecauseSharing Is Caring..

Because Sharing Is Caring..

Photo of author


Hannah Anderson is a gun enthusiast. She developed a knack for guns and ammunition when as a teenager she started accompanying her grandfather to his hunting ventures. Now, she shares her passion and immense knowledge on the subject with the readers.

Leave a Comment