Best Red Dot for Kel Tec Sub 2000

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Welcome back to yet another review where we help you to make the best pick for your weapon’s accessories.

This time we have Kel Tec Sub 2000, and we are looking for the best red dot for Kel tec sub-2000 to go with it.

Since sub-2000 is a clever choice for any gun enthusiast, and this semi-automatic gun, with its innovative folding design, marks for the best there is in the market – it needs an equally efficient red dot to accompany it. Six products made it to the final list, keeping the durability, reliability, performance, and price into consideration. Six products made it to the final list.

Top 6 Kel Tec Sub 2000 Red Dot Sights

Here are the top six picks.

Key Features
Excellent battery features
Ambidextrous switch
Shake awake feature
Solar failsafe technology
Multi- reticles
IPX-7 waterproof
Multi-coated glass
Sig Sauer Romeo 5
Versatile mounting
Secure and easy mounting
IPX-7 waterproof
Long battery life
Versatile illumination settings
Infinite eye relief
Rechargeable battery
Burris Fastfire 3
Easy to handle
Highly accurate
Easy to mount
Ambidextrous switch
Vortex Optics Crossfire
Value for money
Well-built and durable
User friendly
Great battery life
O-ring seal protected
Bushnell Trophy TRS-25
Apt for beginners
Bright and accurate dot
O-ring seal protection
Nitrogen-purged technology
Bright, crisp 3 MOA dot
Versatile illumination settings
Trijicon MRO-C-2200004
Great accuracy
Bright and versatile dot
2 MOA red dot
Adjustable brightness
Waterproof up to 100 feet
Ambidextrous switch
Great built

1. HOLOSUN – HS510C – Best Overall

HOLOSUN Open Reflex, LED, Titanium Housing, 50,000 hr Battery, Quick Detach, Multiple Reticle System...
  • Holosun HS510C open Reflex sight
  • 1x, 30mm diag, 2 MOA Red dot + 65
  • Moa ring reticle, matte black, Absolute co-witness...

Battery life: 50000 hours

Weight: 8.3 ounces

Reasons to buy

  • Precise and accurate
  • Reliable
  • Durable
  • Excellent battery features
  • Easily maneuvered

How it made it to the top of the list?

What is the primary function of sight? The answer is better and more accurate target acquisition. Here we have a reflex sight from HOLOSUN- a company that adheres to this function religiously.

Holosun HS510C provides you with a crisp red dot of 2 MOA and an open circle of 65 MOA, choosing to alter between reticles according to your task or preference. And let’s be honest, who doesn’t love versatility?

Another thing that makes it the best in the league is the automatic brightness feature. It releases you from the worry of adjusting the reticle’s brightness and will automatically match the surrounding lighting condition – brighter under the sun, dimmer in the dark.

All that being said, what good is any sight if you can’t just pull it out and bring it to life. Sub 2000 is a gun that itself is – what you might call it – a “go-gun.” It folds in and deploys in seconds, ready to roll out. It deserves a sight to match this value too. HS510C is one such sight that’s not just easy to mount and handle but also possesses remarkable battery life of 50000 hours. Look at it like this – not having to worry about charging your sight for 5 years – seems excellent. Doesn’t it? HS510C also has a solar failsafe technology embedded to enhance the battery features, allowing the sight to be powered in case of accidental battery loss. And to make sure you don’t lose extra power, it comes with an awake shake feature that allows the LED to automatically turn off when not being used and come to life upon sensing the slightest motion.

All these features, along with impeccable durability combined in one reflex sight. Well, if you ask me, it’s a grab!

Hands-on experience

I had previously owned and used HS515C, which was slightly lighter than HS 510C, but I think a little difference of 3 ounces is bearable compared to all the new and unique features in 510C. When I tried it out, I found the ambidextrous switch convenient and had great fun shooting with it on its accounts, providing a wide field of view and precision. One other thing I admired about it was the parallax-free design that allowed me to retain the position of my reticle even if I moved my head around. Also, a friend who used it added that the reticle was a better fit for her astigmatism.

Wrapping it up!

A reflex sight that hits it out of the park when it comes to performance, durability, and accuracy – Holosun HS510C is the best one out there.

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

2. Sig Sauer Romeo5 – Budget alternate of Holosun HS510C

Sig Sauer Romeo5 1X20mm Tactical Hunting Shooting Durable Waterproof Fogproof Illuminated 2 MOA Red...
  • ROMEO5 GUN SIGHT - The ROMEO5 1X20mm Red Dot Sight...
  • 2 MOA RED-DOT - For those avid shooters who admire...
  • MOTAC TECH - The versatile ROMEO5 red dot sight...
  • VERSATILE MOUNT - This gun sight comes with an...
  • WEATHER RESISTANT - The dependable IPX-7 waterproof and...

Battery life: 40000 hours 

Weight: 0.15 kgs

Reasons to buy

  • Versatile mounting
  • Great battery features
  • Secure and easy mounting
  • Affordable

What you’ll love about it?

Okay, so this sight is what comes to your rescue when you’re light on your pocket but need something extraordinary. It has almost all the features like the HS510C – or more but at a lesser price.

There is no compromise on accuracy as it comes with a crisp red dot, and you can adjust the brightness settings to be compatible with daylight or night vision. Also, with its limitless eye relief, you can obtain a target independent of your eye’s position behind the sight. These features add value to this excellent product.

Not just this, but it also has a great battery life of 40000 hours, and like the HS510C’s shake awake feature, it has MOTAC that allows the light to turn on or off based upon the motion sensation preserving battery life.

Another great thing about this reflex sight is that it comes with two mounting styles, high riser or low profile – which you can alter according to your preference. And it’s not very complex to handle or mount either.

Hands-on experience

I bought this light recently, and I am still geeking about the mounting styles and illumination settings. Also, I tested it out on target puppets in my yards at a distance of 50 up to 100 yards, and I was thrilled to see that the sight held zero even after numerous recoils.

Wrapping it up!

Well designed, rugged, adjustable, and excellent zero retention, all this and inside a reasonable budget – you’ll be missing out if you don’t add it to your bucket list.

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

3. Burris Fastfire – Best for Carriage

Burris 300234 Fastfire III with Picatinny Mount 3 MOA Sight (Black)
  • Picatinny mount included
  • Windage and elevation adjustments that don't require a...
  • Three levels of brightness
  • 3 MOA Dot Reticle
  • Tool-less wind age and elevation adjustments

Battery life: 5000 hours 

Weight: 0.31 pounds

Reasons to buy

  • Compact
  • Easy to handle
  • Highly accurate
  • Versatile
  • Easy to mount
  • Durable

What’s so special?

Burris fastfire reflex sight is the one that is highly compatible with the Sub 2000 itself in function. It matches the concealed carry purpose with its compact design.

Don’t you think if it’s small, there is some sort of bargain in performance? Not at all! As a matter of fact, accuracy is something Burris puts so much stress on while manufacturing their products, and the same is the case with this sight. The 3 MOA dot is well-suited for rifles, such as Kel tec sub-2000, as it caters to pinpoint accuracy for far-off targets. Fastfire also provides you with a great field of view and allows you to acquire a target by keeping both eyes opened, offering enhanced awareness. You can choose between the brightness settings to match your outside lighting conditions. Great, isn’t it.

In addition to all these excellent features, it’s user-friendly as well. It has an easy mounting and elevation and windage alignment that does not require tools.

And it’s not far behind on the durability scale, either. It’s made of quality material and can withhold several recoils on account of having a shockproof glass.

Hands-on experience

I personally loved this one with my sub-2000. It has an elegant design and efficient performance undoubtedly. It works great in hands, holds zero, and is snag-free. Also, I must mention that it’s great for hunting trips or outdoors since it can be carried easily while being mounted on the weapon or alone.

Wrapping It Up!

The impressionable reflex sight would be a great addition to your firearm collection. A perfect fit for your sub-2000 indeed.

  • Easy to attach/detach
  • Lightweight
  • Ambidextrous switch
  • Versatile illumination settings
  • Precise
  • Durable
  • Faulty battery cap design

4. Vortex Optics Crossfire Gen II – Best value for money

Vortex Optics Crossfire Red Dot Sight Gen II- 2 MOA Dot (CF-RD2)
  • The updated Crossfire is a no-nonsense sight for near...
  • With up to a 50,000 hour battery life, the sight will...
  • The 2 MOA dot is quick to acquire in close-quarters,...
  • Increased light transmission with multiple...
  • Highly durable hard-coat anodization provides a...

Run time: 50000 hours 

Weight: 5.2 ounces

Reasons to buy

  • Value for money
  • Well-built and durable
  • Precise
  • User friendly
  • Great battery life
  • Lightweight

What does it offer?

Who doesn’t love any product that justifies the amount spent on it? Well, this reflex sight is an absolute value for money. All the features possessed by this sight will make you wonder how it was even available at such a price and if you think I’m exaggerating, let’s take a look at the features then.

With a great battery life of 50000 hours, this lightweight reflex sight offers precision and accuracy based on its crisp 2 MOA red dot that allows pinpoint target acquisition at larger distances. It holds zero and provides limitless eye relief, so you don’t have to worry about losing target if you move your head around. It features both eyes opened-shooting, so you have a more excellent peripheral vision for situational awareness.

And the cherry on the top is its impeccable quality controlled built, and the O-ring seal provides durability.

Hands-on experience

Last month, one of my friends bought sub-2000 and was looking for the red dot. By then, I had only come across this one among all those mentioned in the list, so I recommended him. And as expected, Vortex stood by its name. The sight lay under his budget, and the shooting experience was gratifying.

Wrapping It Up!

I can say with utmost surety that once you buy it, you won’t regret one penny spent. The features and unique shooting experience will make you forget the loss from your wallet.

  • Highly durable
  • Lightweight
  • O-ring seal protected
  • Optional illumination settings
  • Budget-friendly
  • Easy mounting
  • Hard to operate the brightness knob

5. Bushnell Trophy TRS-25 – Best for beginners

Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x20mm, Black
  • Matte black featuring a 3 MOA Dot reticle with 11...
  • Waterproof construction: O ring sealed optics stay dry...
  • Shockproof construction: Built to withstand bumps,...
  • Nitrogen purged fog proofing: Nitrogen inside the scope...

Battery life: 3000 hours 

Weight: 0.23 pounds

Reasons to buy

· Apt for beginners

· Durable

· Bright and accurate dot

What about it?

This innovative gem from Bushnell is suitable for the newbies in the shooting world. This sight provides the best target acquisition with the 3 MOA bright and clear red dot. The adjustable brightness settings make the sight useful in contrasting or unfavorable lighting conditions.

Obviously, as a beginner, you are not willing to spend a big load of money on something you’re just getting your hands on. This sight is the best purchase in this case. It has a 3000 hours battery life which might not be enough for military use but would be more than enough for a beginner’s use.

Another aspect that gives it a competitive advantage is a nitrogen-purged technology that makes the sight compatible in humid weather and protects against temperature changes, catering best vision.

  • O-ring seal protection
  • Nitrogen-purged technology
  • Bright, crisp 3 MOA dot
  • Versatile illumination settings
  • Shockproof
  • Lesser battery life

6. Trijicon MRO-C-2200004

Trijicon MRO-C-2200004 1x25mm Miniature Rifle Optic (MRO) Riflescope with 2.0 MOA Adjustable Red Dot...
  • LARGE VIEWING AREA: Allows faster target acquisition...
  • EASY-TO-SET ADJUSTERS: Adjusters provide positive-click...
  • SUPERIOR QUALITY GLASS LENSES: Multi-coated lenses...
  • AIRCRAFT-GRADE ALUMINUM HOUSING: Forged 7075 housing...

Battery life: 50000 hours

Weight: 2 ounces

Reasons to buy

· Durable

· Great accuracy

· Bright and versatile dot

What about it?

Trijicon stands tall for its name. It speaks quality and performance. It has a crisp red dot that provides accuracy and a broader field of view. It offers elementary operations without using tools, and you can effortlessly adjust the brightness levels of the dots according to your preference. It is waterproof up to 100 feet, but it is also protected by aluminum housing, increasing its durability quotient.

  • 2 MOA red dot
  • Adjustable brightness
  • Waterproof up to 100 feet
  • Ambidextrous switch
  • Great built
  • Expensive

What to look for?


A reflex sight needs to be readily available for use. It’s no good if it lacks good battery life. Vortex Optics Crossfire Red Dot Sight Gen II and Holosun HS510C possess exceptional battery features accompanied by 5 years of battery life.

Zero retention

One of the main functions of a reflex sight is to retain zero, even after a number of recoils, providing utmost accuracy. This becomes more important when looking for a sight mounted on a semi-automatic gun like Sub 2000.

Sig Sauer Romeo5, Vortex Optics Crossfire Red Dot Sight Gen II, and Holosun HS510C provide zero retention, hence reliability.


The money you’re putting into a product is also equally important. You can not afford to go on spending dollars on a worthless sight that doesn’t hold up to its function as promised.

Our top pick, HS510C, isn’t considered the best overall for nothing. It has the best features but requires a reasonable sum of money, which don’t worry, you won’t regret spending. The same is the case for Vortex Optics Crossfire Red Dot Sight Gen II, the best value for money.

And then, if you want to go lower on budget and still enjoy the quality or precision of HS510C, we also have Sig Sauer Romeo5.

Bottom line

We have reached the end of the review, and I hope it was helpful to create an image in your head as to which reflex sight you’re going to find most suitable for your mighty Kel tec sub-2000.

Also check out my best sight for KSG review.

Head on to kel tec problems FAQs for further queries.

Till next time, have fun shooting!


Is 3 MOA better than 8 MOA?

3 MOA provides a crisp dot that is precise and helps acquire target at greater distances, while 8 MOA facilitates faster target acquisition at shorter distances.

What the military uses red dot sight?

The US military typically uses M668CCO Close Combat Optic.

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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.