Best Red Dot Sights for Sig Sauer MPX

The Sig Sauer MPX is a fun little firearm that has lots of fans. It’s a 9mm submachine gun that features a short-stroke gas piston system, a rotating bolt locking mechanism, and fully ambidextrous controls, which means it shoots a lot faster than your standard handgun or rifle. However, the trade-off is that you have to pay more attention to accuracy and precision because of the extra speed. If you want to shoot with maximum accuracy and make sure each shot counts, choosing the best red dot sight for Sig Sauer MPX will help tremendously! There are several options available on today’s market for these types of sights, especially since many people like yourself enjoy using them as well. Based on our experts, please keep reading to find out what we think makes one type better than another in certain situations.

Top 5 Best Optic for Sig MPX 

Red dot sights are by far one of the best additions you can make to your sig mpx if accuracy and precision are two things that interest you.

Let’s look at some of the best sig mpx sights currently available on today’s market for Sig MPX owners. We’ll also share our recommendations depending upon your specific shooting needs.

Key Features
Solar failsafe feature
It is user-friendly
Holds the recoil nicely
Allows you to shoot accurately
Sauer Romeo 5
2 MOA Red-Dot
Waterproof and fog proof
It is user-friendly
Holds the recoil
Sig Sauer
2 MOA red dot
Extremely durable
IPX-7 Waterproof
Vortex Optics SPARC
2 MOA dot
Pin-point accuracy 
700 to 50,000 hours battery time
Anti-reflective coatings
Highly durable
12 illumination settings
Water, fog, shockproof
Vortex Optics
Strike fireII
Reliable scope
10 brightness settings

1. HOLOSUN – HS510C – Best Red Dot for Sig Mpx

HOLOSUN – HS510C (Image credit: Amazon)

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Brand: HOLOSUN Color: Black Style: 2 MOA Dot, 65 MOA Circle Item Dimensions LxWxH: 4.75 x 3.62 x 3.12 inches Weight: 8.3Ounces Material: Aluminum Objective Lens: 30 Millimeters Night vision: No

HOLOSUN HS510C is the best red dot sight for sig Sauer Mpx that is designed for longer barrel guns. The sight’s housing is made of aluminum alloy, which provides a sturdy base. You can change the appearance of your aiming reticle to fit any situation. Whether you prefer a 2 MOA dot and 65MOA open circle, our fast acquisition be there for when precision is needed most!

Holosun’s Solar Failsafe system makes sure that your red dot sight will never fail in an emergency. The battery life lasts up to 50000 hours or more with this feature enabled! The HOLOSUN HS510C red dot sight will never fail when it’s time to shoot outside in bright sunlight or under-lit areas with little light from normal sources such as windows. The illuminated reticle automatically becomes brighter for an easier aiming experience while retaining its ability to adjust the brightness based on environmental conditions. It’s hard to be cautious and still enjoy nature. With Holosun’s Shake Awake feature, the slightest movement enables your LED. The motion sensor can do its job without compromising on great battery life as well.

If you’re looking for a durable and easy-to-use optic that will let your 9mm, 40SW or 45ACP go downrange with pinpoint accuracy, this is the perfect entry-level reflex sight. You can mount HOLOSUN HS510C on MPX easily and all types of guns that feature Picatinny rail.

Reason to Buy:

You can shoot with both eyes open and see your target instantly! This large ergonomic optic has a Parallax-free design, unlimited eye relief for any shooting position.

  • Even if there is a small amount of light, this reflex sight works without even using the battery.
  • It uses solar energy you save battery life.
  • It is user-friendly.
  • This reflex red dot sight holds the recoil nicely.
  • It allows you to shoot or hunt accurately.
  • It is affordable.
  • It has auto-brightness settings.
  • At times the red dot optics doesn’t brighten up according to your desired brightness settings

2. Sig Sauer Romeo 5 – Best Optic for Mpx

Sig Sauer Romeo5
Sig Sauer Romeo5 (Image credit: Amazon)

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Brand: Sig Sauer Color: Black Dimensions LxWxH: 7.75 x 4.75 x 3.5 inches Weight: 1.1 Pounds Material: Metal Objective Lens : 30 mm Magnification Max: 1x Objective Lens: 20 mm Magnification Minimum: 1x

When I tested the Sig Sauer Romeo 5, my concerns were if it would be able to stand up against some expectations. However, as soon as I unbox this product and read through its features, there’s no doubt in your mind left about what kind of durability these scopes offer!

“Romeo5 is designed for people who want high-end versions at low prices.”

The Sig Sauer Romeo 5 1x20mm 2 MOA Compact Red Dot Sight is a micro-red dot sight that provides fast target acquisition and enhanced accuracy. It features Motion Activated Illumination, which powers up when it senses any motion and power down when it does not, providing quality operational security and increased 40,000+ hour battery life. The M1913 Picatinny interface provides standard mounting options for multiple ranges of applications. Sig Sauer is a highly waterproof IPX-7 rated for complete water immersion up to 1 meter.

The Sig Romeo 5 red dot optic is perfect for Sig Sauer MPX. It has an ultra-low parallax design that makes aiming straightforward and easy, as well as a sleek black finish that will match your gun’s aesthetics nicely!

Reason to Buy:

The 2 MOA dot size with ten illumination settings, including a night vision system, makes it extremely versatile. The best thing is It uses one CR2032 battery that runs up to 40,000 hours!.

This is my personal favorite reflex sight

  • you can easily adjust the elevation and windage turrets.
  • It is handy and weighs less.
  • It is waterproof and fog proof.
  • The lens provides a clear and crisp image of the target.
  • The budget red dot sight is round and clear.
  • It is user-friendly and can be easily attached or detached from your firearm.
  • It focuses upon the target within no time.
  • It holds the recoil of the firearm nicely without losing focus.
  • incredible battery life
  • be very careful While mounting the scope, because the plastic of the mount is quite delicate and can break if not taken properly care of

3. Sig Sauer Romeo4S – Best Sight for Mpx

Sig Sauer Romeo4S
Sig Sauer Romeo4S (Image credit: Amazon)

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Brand: Sig Sauer Color: Black Dimensions LxWxH: 4.72 x 3.03 x 0.76 inches Sport Type: Hunting, Airsoft, Tactical & Military Weight: 0.15 kg Magnification Maximum:1 x Objective Lens : 20mm Magnification Minimum1 x

Sig Sauer Romeo4S Red Dot is a rugged, ultra-compact red dot sight powered by light. Sig Romeo4S features four reticle patterns for instinctive aiming under any light conditions. Whether you’re using the sight for hunting, target shooting or self-defense, the Sig Romeo4S will help you make every shot count.

The Sig Sauer SOR43021 Romeo4S is a highly advanced, ultra-compact red dot sight; Sig Sauer Romeo 4 S is a great choice for the modern semi-automatic pistol and shotguns. The Romeo4S offers extreme durability and reliability with features like a 2 MOA Red Dot Ballistic Circle Dot reticle, featuring an open architecture design and waterproof housing.

Reason to Buy:

The solar panel charges the battery during the day so that you can use your optic at night. The extended battery life lasts up to 100,000 hours of continuous use.

  • It is Solar powered red dot sight
  • 100,000 plus battery life
  • Suitable for semi auto pistols
  • 2 MOA red dot
  • Extremely durable
  • IPX-7 Waterproof
  • Fog-proof
  • Actual color is glossy grey instead of dull grey

4. Vortex Optics SPARC – Sig Mpx Sight

Vortex Optics SPARC Gen II
Vortex Optics SPARC Gen II (Image credit: Amazon)

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Brand: Vortex Color: BLACK Style: Gen II  Dimensions LxWxH: 5.6 x 4.65 x 2.7 inches Sport Type: Hunting Weight: 0.8 Pounds Material: Aluminum Magnification Maximum: 1 x Objective Lens: 44 Millimeters Magnification Minimum: 1 x

The SPARC II is the next generation of compact, lightweight, durable and ultra-bright red dot sights. The SPARC II was designed to improve upon the strengths of its award-winning predecessor, the SPARC (Single Point Aiming for Rapid Combat), which earned high praise from shooters around the world.

The SPARC red dot has a high-powered red dot sight that can last up to 700 hours on the highest setting, 50 thousand at its lowest and night vision compatibility available for both low modes.

The reticle on this scope is a clear and crisp dot with 12 illumination settings that allow you to choose the right intensity for any situation. There are anti-reflective coatings throughout all air to high-quality glass surfaces, which increase light transmission to provide an increased field of view when aiming at close-range targets.

Reason to Buy:

The SPAR II is a lightweight, compact, aluminum sight that delivers the performance of larger optics but is still easy to mount and adjust.

  • It Comes with accessories
  • Impressive pin point accuracy
  • Is is very Compact & lightweight
  • Convenient controls
  • Unlimited life time warranty.
  • Auto-timer may trouble
  • Slightly expensive

5. Vortex Optics Strikefire II – Best Sight for Sig Mpx

Strikefire II Red:Green Dot Sight
Strikefire II Red:Green Dot Sight (Image credit: Amazon)

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Brand: Vortex Color: Black Style: Red/Green Dot Dimensions LxWxH: 7.25 x 6.25 x 3 inches Weight: 0.24 Kilograms. Material: Aluminum. Magnification Maximum: 1x Objective Lens: 30 mm Magnification Minimum: 1 x. Mounting Type: Cantilever Mount

If you’re looking for a red dot sight that can get the job done and won’t break your bank account, then this is it. For under 200 dollars, .you’ll be getting an excellent option in both qualities of the product as well as affordability!

Vortex Optics Strikefire II Red Dot Sight – 4 MOA Red/Green Dot. The Vortex Optics StrikeFire II is a tough, lightweight red dot sight that’s waterproof, fog proof and shockproof. The extended battery life CR2032 provides up to 2 years of continuous use. The reticle offers both red dot and green dot options for any situation or target color. Fully multi-coated lenses provide superior light transmission and maximum brightness settings from dawn to dusk. O-ring sealed construction keeps out moisture, dust and

The compact and lightweight single-piece chassis provides shockproof performance withstanding both recoil, impact. The nitrogen purging process of this product ensures that it is fog proof or waterproof for your needs!

Reason to Buy:

A cantilever mount is provided for when you need to use all of your equipment in conjunction. You can adjust this mounting base so that it’s forward-facing, which makes using both magnifier and backup sights on one rail easy!

  • It is a very Reasonably priced scope
  • It has Two reticule color options
  • Waterproof & Shockproof
  • Easy to operate
  • Extended battery life
  • Versatile operation
  • Lifetime Warranty
  • An automatic 12-hour shutdown may be inconvenient.


Finding the best red dot sights for your Sig Sauer MPX can be a difficult task. To help you out, I have put together this list of my favorite red dots for MPX. I hope that you find it helpful when making your decision! Which one will fit your needs? I recommend you try a hand at sig Sauer Romeo 5 if you want a good red dot sight and your budget is low. if you want to enjoy a premium hunting experience, then go for holosun- HS510C


Is Sig Sauer MPX legal?

YES! The Sig Sauer MPX is legal in the United States. Sig Sauer has announced that the MPX has received ATF approval for sale in the U.S. marketplace.

Is the SIG MPX a good gun?

The SIG MPX is a great-looking gun with features that make it easy to use. If you’re an AR15 fan who wants the most out of their weapon without having too many options, this could be all yours! It’s a great-looking gun. If your tastes run towards tactical-style firearms or movie guns – this one has been featured in many awesome movies.

It is also featured in the John Wick movie.

What red dot sight do the Navy Seals use?

The U.S.’s elite military units, such as the Navy SEALs and Green Berets, use Aimpoint red dot sights in combat situations to help them with their mission objectives.

The United States’ most skilled warriors – including members of special operations force teams known as ‘SEAL Team Six,’ or Delta Force– rely heavily upon pointable objects called “red dots” when going into battle because these high-quality reflex dazzlers allow individuals who wear them see anywhere.

Does Sig make good red dots?

YES! Sig made one of the best red dot sights.

The Sig Romeo5 is a very well-made red dot sight. The plastic feels solid, and I don’t see any signs of cheapness, even in its pricing tier, where many competitors’ products can be found for less than half the cost! 

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