Best Red Dot sights for HK mp5

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Hey shooters! Welcome to my review about Best Red Dot sights for HK mp5 in 2024.

I’ll be taking you on a fun ride of exploring the best red dot sights for mp5 in the current firearm market.

It’s not a secret that you must be tired of all the pop-ups on your screen about different sights, and it’s hard to decide which one to go for, how to weigh all the pros and cons and features and rate them out in order of preference. 

While your mind is bombarded with questions like, is the product even worth all these bucks? Is there a better alternative to this one? Are the customer reviews legit? And the list goes on.

Now you can take the back seat since we’ve covered you on this. After years of experience with firearms and weapons, my recent object of interest has been red dot sights. When I came across MP5, my first instinct was to find the best match for it in the league of red dot sights. Hence the search began. 

In this article, I will be sharing with you my top preferences to go with this “state-of-art” submachine gun that is widely used by the military, most commonly SWAT.

Six red dot sights made it to the list based on reliability, durability, accuracy, and price. At the same time, one among them caught my attention the most and is undoubtedly my personal favorite. It’s none other than our top pick, HOLOSUN HS510C.

So, now let’s get into the detailed analysis of the products without wasting any more time.

Top Six mp5 Red Dot Sights

ProductKey FeaturesRating
HOLOSUN-HS510C Precise and accurate
Excellent battery
Ambidextrous switch
Shake awake feature
Solar failsafe technology
Easy mounting
Multi- reticles
IP6-7 waterproof
Multi-coated glass 
Sig Sauer Romeo5  Versatile mounting
Secure and easy mounting
IP6-7 waterproof
Long battery life
Infinite eye relief
Rechargeable battery
Holosun HS503CU Lightweight
Solar powered
Ambidextrous switch
Multi-reticle setting
Easy on hands
Precise & Durable
Trijicon SRO Compact & Accurate
User friendly
Highly durable
Large field of view
Top loading battery
Optional illumination settings
Trijicon MRO CSmall profile
Precise and bright dot
8 brightness settings
Tool-less adjustments
Large field of view
Multi-layered glass
Great battery life
Aimpoint micro T2Great accuracy
2 MOA red dot
12 adjustable brightness settings
Waterproof up to 80 feet
Front/rear lens cover
Great built

1.  HOLOSUN – HS510C – Best Overall Red Dot Sight for mp5

Why it’s a top pick?

Holosun promises quality and performance. HS510C is a red dot sight that features accuracy and reliability at its best. It’s 2 moa red dot allows you to obtain a precise target, and an open circle of 65 moa provides you with target acquisition at a greater distance. This kinda versatility adds to the overall value of this product.

Now let’s talk about the battery features of HS510C, which are crucial to keep in mind while buying a sight. Not only does it provide 50000 hours of incredible battery life – to put it in perspective, you can go 5 years without having to charge it – but also, the innovations like solar failsafe or shake awake give sight a competitive edge, where solar failsafe technology allows the sight to work just fine even after the battery runs out and shake awake feature works on the motion sensor phenomenon – turning the sight on upon sensing motion, preventing wastage of battery life.

Something else you would love about this red dot sight, particularly, is its automatic brightness feature. It frees you from the fatigue of constantly worrying about adjusting your reticle to match the surroundings. Rather does it for you.

Along with all these mind-blowing features, it gives you incredible durability and great light transmission because of its multi-layered lens coating. So, all this in one sight is a great package.

My Experience

The parallax-free design was what I enjoyed the most about my experience with this sight. Although no sight is completely parallax-free, this has the least parallax, which means it causes the least possibility of losing your target if you move your head around.

Also, HS510C comes with a greater field of view with a comparatively larger window. And the ambidextrous switch is an added convenience in itself.

Wrapping it up!

If you are looking for an “all-in-one” red dot sight for your mp5, look no further. 510C is your thing. When it comes to performance, durability, and accuracy – Holosun HS510C is the best one out there. 

  • Multi-reticles
  • Shake awake feature
  • Easy mounting
  • Multi-coated glass
  • Ambidextrous switch
  • IP6-7 waterproof
  • Solar failsafe technology
  • No night-vision

2. Sig Sauer Romeo5 – Budget Alternate of HOLOSUN – HS510C

What you’ll love about it?

Now that I have gone on and on about Holosun, you must think what other products this review could have that would match a high bar set up. But the answer to this question is sig Sauer Romeo 5. It has similar features to the HS510C, but at a lesser price.

Let’s start with accuracy and precision. Its 2 moa crisp red dot provides the best precision, and with 10 brightness levels, including 2-night vision settings, you can adjust the reticle’s illumination according to the lighting conditions outside. This gives you the best target acquisition.

The battery features aren’t so far behind the HS510C’s 50000 hours of battery life since it provides you with 40000 hours itself. Also, like the shake awake feature of 510c, Romeo 5 has MOTAC, which works on the same principle of motion sensing and preserves the battery when sight is not being used.

Rome 5 provides versatile mounting styles, which you can keep altering according to your preference- high riser and low mount. And it’s really easy to operate as well.

My Experience

A friend of mine recently bought it, and I tried it on my mp5. It worked fine if you asked me. After multiple recoils, it was still able to hold zero, so I figure it’s a great fit for mp5 that is considered a good use for military purposes.

Wrapping it up!

An impressive match for mp5 in your budget, sig Sauer Romeo 5 should be on your wish list by now.

  • Durable
  • IP6-7 waterproof
  • Versatile illumination settings
  • Long battery life
  • Infinite eye relief
  • A bit bulkier

3. HOLOSUN-HS503CU – Best for Beginners

What’s so special?

We have another gem from Holosun – HS503CU. This specific product can be a great purchase for new wanderers into firearm valleys because it’s a “holosun” with similar features as our top pick – HS510C, but without spending too much money on it. It’s easy on the hands, efficient, accurate, and lightweight.

It gives almost a never-ending battery life of 50000 hours and is also charged by solar power. In retrospect of precision, it doesn’t lag either. It gives you a choice to pick between a crisp dot of 2 moa that would get you a precise target or a circle of 65 moa to obtain a target at a larger distance. Not just this, but you can also alter the reticle’s brightness levels manually or set it to auto.

If it has all this, why doesn’t have the signature shake awake feature of HOLOSUN? It has. So, it will automatically turn off when not in use to preserve battery life and come back to life when you pick it up.

My Experience

It works so well with any rifle, particularly with mp5, since the accuracy of a submachine gun like mp5 demands is matched by this one, and the size plays the most important role. When you put it in comparison with HS510C, the biggest difference that you would feel is that HS503CU is lightweight and snag-free, although, in a high mount setting, it might give a different look, you can put it to low mount, and it would look just how it feels on hand – easy.

Also, the zero retention was not compromised even a bit, and this is what I loved the most about it.

Wrapping It Up!

If you are hooked on a holosun in particular but don’t want to spend extra bucks on it or want a trial purchase first, this is the product for you. Don’t waste your time and go get it!

  • Lightweight
  • Solar powered
  • Ambidextrous switch
  • Multi-reticle setting
  • Easy on hands
  • Precise
  • Durable
  • No night vision

4. Trijicon SRO sight – Best for Carriage

What does it offer?

Trijicon is the name of the guarantee itself. A brand name, like holosun, I’m sure all gun nerds must have heard of. This time we have two products from this line of products. First is the Trijicon SRO sight.

What separates SRO from all others in the list is its weight since it’s the lightest of them all. At just about 1.6 ounces, it matches the performance level of all the other sights. The weight of this sight makes it extremely easy to be carried and handle.

It has a crisp 2.5 moa red dot that doesn’t flicker at edges, providing unmatched precision. It has a wide window that features a great unhindered field of view and zero retention after multiple recoils. Another feature of the reticle is the automatic and manual brightness setting that delivers the best operation in various lighting conditions.

Also, this mini but mighty piece has up to 3 years of impeccable battery life and a very user-friendly feature. This top-loading battery makes switching batteries a matter of seconds without putting your hand at the risk of getting in front of the muzzle or losing zero.

My Experience

I previously owned it for a pistol, but when I was trying out the sights for my mp5, I thought of putting it to the test, and it surpassed my expectations. It held zero in the face of multiple recoils despite its small size. Also, the holographic dot was beneficial for my astigmatism.

Wrapping It up!

I can not stress this enough if you don’t have budget constraints and want a highly efficient red dot sight, then grab this one immediately!

  • Highly durable
  • Lightweight
  • Large field of view
  • Top loading battery
  • Optional illumination settings
  • Budget-friendly
  • No mount included
  • No night vision
  • Expensive

5. Trijicon MRO-C– Best Value for Money

What’s special about it?

From SRO to MRO, we have now reached the second gem from Trijicon’s chest. This one is definitely the best value for money because it’s worth every penny spent on it. It has a bright and crisp 2 moa red dot with 8 brightness settings that can be manually or automatically adjusted – brighter in the sun or dimmer in the dark. Also, it has tool-less adjustments that make it user-friendly.

MRO-C, with almost 50000 hours of battery life, is highly durable because of its aluminum housing and multi-coated glass lens that makes the sight compatible in humid weather, protects against temperature changes, and caters to the best vision. And the small profile makes it easy to carry and looks good on your mp5.

  • 8 brightness settings
  • Tool-less adjustments
  • Large field of view
  • Multi-layered glass
  • Great battery life
  • A slight bluish tint

6. Aimpoint Micro T-2 Red Dot Reflex Sight

What about it?

Aimpoint is another name in the firearms business that keeps revolutionizing its product line. In this list, for mp5, we have the micro T2 with a 2 moa bright and accurate red dot with 12 brightness settings, out of which 1 is extra bright – to be used under bright sunlight. With 50000 hours of exceptional battery life, it provides you a great field of view and lens features like the use of an advanced lens or flip plastic covers for front and rear lenses.

Its highly durable and rugged design would avoid damage till submersion up to 80 feet.

  • 2 MOA red dot
  • 12 adjustable brightness settings
  • Waterproof up to 80 feet
  • Front/rear lens cover
  • Great built
  • Relatively expensive

What to look for?


A red dot sight, especially the one mounted on a gun like mp5 specialized in its use in the military, should always be ready to perform if you have to keep charging it over and over again or have a hard time changing batteries. The whole point of having a sight that is faster target acquisition, is lost.

So, in this perspective, almost all the sights that made this list check out. Both HOLOSUN – HS510C, HS503CU, Trijicon SRO, MRO-C, and Aimpoint; all provide 50000 hours of battery life and various exceptional battery features like solar technologies or battery port designs.

Zero retention

Holding zero is the main purpose of sight. That’s how it provides accuracy and precision. When I tested out all the sights in the lists, I found the three to be highly reliable in this realm, putting them on the top. HS510C, sig Sauer Romeo 5, and HS503CU – all provided excellent zero retention even after multiple recoils.


Any sight whose advantages or features don’t add up to its total price is no use. So, choose wisely when you make the purchase. If you want an “all-in-one” product and have a fine budget, then I would advise you to go for HS510C, or if you can go higher on the price range, then Trijicon SRO, MRO, or even Aimpoint.

But I believe this list has products that are equally efficient and lighter on the pocket, like Sig Sauer Romeo 5 or HS503CU, so you should consider them, especially if you’re a beginner.

Bottom line

This brings us to the end of the review. Hope you had fun, and this review helped make your pick for the red dot for your mp5.

Until next time, happy hunting!


What are red dot sights good for?

They bring the target and reticle on one optical plane, making a single focus point so the shooter can acquire the target.

Who uses mp5 more commonly?

It is most commonly used by law enforcement, military, and intelligence organizations. It was widely used by SWAT teams in North America.

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My name is James Frost. I'm a veteran shooter and content creator who enjoys writing firearm gears reviews for I love teaching people about guns and gear and helping them to become better shooters.

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