Holosun 407k vs Holosun 507k Red Dot Optic: Which One is Right for You?

Chris G.

Choosing the right micro red dot sight for your concealed carry pistol is a big decision. The wrong optic can leave you fumbling on critical shots.

But equip your subcompact with the perfect mini red dot, and you’ll have lightning-fast target acquisition and improved accuracy in a discreet, low-profile package.

In this no-holds-barred comparison guide, we’ll examine the stand-out differences between two of the hottest mini red dots on the market right now:

  • The Holosun 407k, known for its crisp 6 MOA dot
  • The Holosun 507k, touted for its versatile multi-reticle system

We’ll compare these two titans across the must-know categories like:

  • Optical clarity and brightness for quick targeting
  • Rugged durability to withstand daily carry
  • Battery life and efficiency
  • Reticle options and capabilities
  • Size and weight for concealed carry
  • Accessories and features

By the end, you’ll have the unbiased facts on Holosun 407k vs 507k so you can decide the best micro optic for your concealed carry setup and shooting style.

Let’s dive in and settle this red dot debate once and for all!

Table of Contents

Optics Clarity, Lens, and Brightness


When your life depends on split-second target acquisition, you need an optic with crystal clear sights. Muddy lenses or obscured reticles spell disaster.

Both the 407k and 507k deliver ultra-sharp clarity thanks to quality multi-coated lenses. But how do their sight pictures compare under the microscope? Let’s investigate.

FeatureHolosun 407kHolosun 507k
Optical ClarityHigh-quality glass provides clear and bright imageHigh-quality glass provides clear and bright image
PerformancePerforms well in various lighting conditionsPerforms well in various lighting conditions

Optical Clarity and Brightness in Holosun 407k

Staring down the 407k, the 6 MOA dot is nicely visible against the target. I appreciate the clean lens with barely any bluish hue – it makes for a sharp unobstructed view. The dot is easy for my eye to pick up quickly thanks to its larger size.

That said, when I compared it to other optics like the EPS Carry, I did notice those models provided a bit more optical sharpness. And the 407k’s wider dot covers more of what I’m aiming at, reducing precision for longer shots. But for fast targeting, the 407k delivers excellent clarity.

Optical Clarity and Brightness in Holosun 507k

Sighting through the 507k, I’m impressed by how little blue tint there is – the lens economizes on color distortion. The 2 MOA dot with 32 MOA outer circle give me clear reticles for both close-up and distance shots.

Even with the sun glaring down, I can easily acquire the 507k’s bright dot. And its wide optical window expands my field of vision to find targets faster. Overall, the 507k’s optics are crystal clear and really excel for quick targeting.

Conclusion: Superior Optical Performance – Holosun 407k vs 507k

For sheer optical sharpness, I’d have to give the edge to the 507k – those versatile reticles through its expansive lens are hard to beat. But the 407k still provides excellent clarity for the price point. So it comes down to your needs and preferences looking through the sights.

Durability and Build Quality

As an active shooter, I put my gear through its paces. A fragile optic that fails in the field is useless. So durability is make-or-break for me.

After hands-on testing, here’s my take on how the 407k and 507k’s ruggedness compares:

FeatureHolosun 407kHolosun 507k
DurabilityMade from 7075 T6 aluminum, IP67 waterproof ratedMade from 7075 T6 aluminum, IP67 waterproof rated 
Build QualitySolid construction, withstands recoil wellSolid construction, withstands recoil well 

Holosun 407k Durability Analysis: Is it Built to Last?

Hefting the 407k, the thick square aluminum housing gives it some serious heft for its size. It feels like a solid brick in my hands. The anodized finish has proven slickly resistant to all the scratches and scuffs I’ve put it through.

I’ve also submerged and soaked the 407k without any fogging or water damage thanks to its IP67 rating. Whether it’s dusty trails or muddy marshes, the 407k has kept up with my adventures. For EDC, it has the brawn to handle daily knocks and drops.

Durability of the Holosun 507k: Ruggedness and Reliability

This thing is built like a tank! The aircraft-grade aluminum can clearly take some hardcore punishment based on my testing. When I put the 507k through a grueling durability gauntlet of drops, shocks, and scrapes, it came out unscathed.

Like the 407k, the 507k exceeds waterproofing standards and has never fogged up, even in frigid early morning conditions with my breath condensing on it. Its rugged build gives me confidence it can handle any scenario I find myself in.

Durability Comparison: Which Model Wins – 407k or 507k?

While both are impressively durable, the 507k edges out the 407k in my hands-on durability testing. This thing is a beast! For max ruggedness, the 507k paired with my EDC has proven unstoppable.

Battery Life and Power Management

There’s nothing worse than your optic dying mid-session at the range. So I want confidence my red dot will keep on ticking as long as I do. Here’s my experience with battery life on the 407k and 507k:

FeatureHolosun 407kHolosun 507k
Battery LifeUp to 50,000 hoursUp to 50,000 hours (20,000 hours if using M.R.S.)
Power EfficiencyEfficient power management with Shake Awake technologyEfficient power management with Shake Awake technology

Battery Performance in Holosun 407k: Efficiency and Longevity

Holosun claims you can get up to 50,000 hours from a single CR1632 battery in the 407k. While I haven’t quite hit that mark yet, I’ve gone just over 1.5 years of frequent shooting before needing a swap.

Other users seem to get around 2 years or so before the 407k needs fresh juice. The side access tray makes swaps a breeze. Overall, the 407k delivers solid runtime for a micro red dot.

Holosun 507k Battery Analysis: Powering Through the Demands

Like the 407k, Holosun says the 507k can hit 50k hours on a CR1632 battery using just the 2 MOA dot. However, runtime drops to 20,000 hours when using the multi-reticle mode.

My 507k battery lasted about 8 months alternating between the dot and circle-dot reticles. Other users report anywhere from a month to a year before replacing the cell. Easy access tray like the 407k.

Comparative Battery Life: 407k vs 507k Efficiency Showdown

If you exclusively use the single dot reticle, it’s a battery life tie. But the 407k pulls ahead for me since I like having the multi-reticle option on the 507k without sacrificing battery performance. Both offer easy access battery trays and respectable runtime.

Reticle Options and Versatility

The right reticle can make all the difference in target acquisition speed and accuracy. As a fan of having options, I lean towards optics with versatility to adapt to changing scenarios. Here’s how the 407k and 507k reticles compare:

FeatureHolosun 407kHolosun 507k
Reticle Options6 MOA red dot2 MOA dot, 32 MOA circle, or a combination of both
VersatilityGood for quick target acquisitionMore versatile due to Multi-Reticle System

Holosun 407k Reticle Options: Flexibility for Different Scenarios

The 407k keeps it simple with a single 6 MOA dot reticle. For EDC and close-quarter shooting, I’ve found this wider dot easy and fast to pick up on target. The larger circle covers more of what you’re aiming at for quicker targeting at typical handgun distances.

But the 6 MOA dot lacks precision for longer shots. And with no other reticle options, the 407k lacks versatility if I’m looking to switch between CQB speed and pinpoint accuracy when reaching out further.

Versatile Reticle Choices in Holosun 507k

The 507k wins on versatility thanks to its multi-reticle system. With the push of a button, I can switch from a 2 MOA dot for surgical precision, to a 32 MOA circle for lightning fast acquisition, to a circle-dot combo balancing both.

This flexibility lets me adapt the 507k to close-quarters home defense or picking off targets at the range with a simple reticle change. The ability to toggle options to suit the scenario is a game changer.

Reticle Comparison: Which Is More Versatile – 407k or 507k?

For me, the 507k’s multi-reticle system takes the cake when it comes to flexibility. With three reticles to switch between, it handles any shooting situation I’ve thrown at it. The 407k’s single 6 MOA dot gets the job done for EDC, but can’t match the 507k’s versatility.

Size, Weight, and Convenience

When picking a concealed carry optic, size and weight are crucial factors for me. Excess bulk can slow down my draws and weigh down my clothing. Here’s my take:

FeatureHolosun 407kHolosun 507k
Size1.6 inches in length, 0.98 inches in width, 0.95 inches in height1.6 inches in length, 0.98 inches in width, 0.95 inches in height
Weight1 ounce1 ounce

Holosun 407k: Compactness and Portability Examined

The 407k is tiny and featherlight on my pistol. At just 1.6 inches long and 1 ounce, it completely disappears into my waistband holster. The window still gives me a decent sight picture for quick targeting.

Despite the micro size, the aluminum build makes the 407k plenty rugged. I often forget it’s even mounted, that’s how little it weighs. For EDC, the 407k has the perfect compact package.

Size and Weight of Holosun 507k: A Closer Look

Just like the 407k, the 507k is miniscule at only 1.6 inches and an ultralight 1 ounce. It carries just as effortlessly without any noticeable bulk or weight.

The window is identical to the 407k, giving that same clear sight picture. Same durable aluminum in a frame that vanishes when holstered. Aside from the different reticle, I really can’t tell the 407k and 507k apart in hand.

Comparative Size and Weight: Which Is More User-Friendly?

With identical tiny footprints and weights, the 407k and 507k are equal when it comes to size. I never notice either one while carrying or shooting. If staying compact and lightweight is key, both optics fit the bill perfectly.

User Reviews and Experiences: Main Differences

After countless hours training with these optics, here’s the inside scoop from our team’s real-world testing experiences:

FeatureHolosun 407kHolosun 507k
User ReviewsGenerally positive, praised for clear red dot and impressive battery lifeMixed reviews, praised for brightness and ease of installation
User ExperiencesSome users report it’s not compatible with night vision devicesSome users report issues with performance under recoil

User Feedback on Holosun 407k: Real-World Insights

Our staff found the 407k to be an ideal match for EDC pistols. The 6 MOA dot consistently delivers fast and accurate targeting during close-quarter drills. We’re impressed by the rugged build quality that keeps on running despite drops and dunks during exercises. The only gripe is lack of night vision compatibility for low light training.

Holosun 507k User Experiences: What the Users Say

The 507k earned mixed reactions from our crew. They love the crystal clear glass and insanely bright reticles for targeting in sunlight. However, some team members experienced issues with the 507k shutting off under recoil impulses or flickering inconsistently. While great when it works, the 507k’s finicky performance gave them pause.

Comparative User Insights: Preferences Between 407k and 507k

Overall, our team found both sights more than adequate for tactical applications. But the 407k’s reliability and battery efficiency earn it the top spot. The 507k offers handy features, but potential reliability problems in the field made some of them hesitant to trust it. For a duty-grade micro dot, they’ll stick with the 407k.

Accessories and Additional Features

The right accessories can maximize your optic’s capabilities in the field. Here’s an overview of some key add-ons available for the 407k and 507k:

FeatureHolosun 407kHolosun 507k
AccessoriesMounts, protective covers, spare partsMounts, protective covers, spare parts
Additional FeaturesLock ModeMulti-Reticle System

Holosun 407k Accessory Options: Enhancing the Experience

For the 407k, I recommend picking up a quality lower 1/3 co-witness mount like the MOS adapter to solidly attach the sight to your pistol’s slide. Protective covers are also a must to shield the glass when tossing the 407k in your range bag. And keeping spare batteries and a battery tray on hand ensures you never get caught off guard by a dead dot.

Accessory Choices for Holosun 507k: Expanding Capabilities

Just like with the 407k, a sturdy mount like the MOS adapter suited for your particular pistol model provides a rock-solid foundation for the 507k. Protective covers help prevent scratches or cracks during transport and storage. I also suggest keeping replacement screws and a battery tray available for repairs and maintenance down the line.

Accessory Comparison: Which Model Offers Better Options?

Since the 407k and 507k share nearly identical dimensions, they’re compatible with the same extensive range of mounts, covers, replacement parts and other accessories. Either optic can benefit from additions like co-witness mounts and protective covers to expand capabilities. The core accessory options are effectively equal between the two.

Cost Analysis and Value for Money

While both are quality optics, there is a price difference between the 407k and 507k. Let’s break down the dollars and cents:

FeatureHolosun 407kHolosun 507k
CostLower cost, good value for moneyHigher cost, offers additional features
Value for MoneyGood value for money, especially for those on a budgetGood value for money, especially for those who value versatility 

Holosun 407k Price Comparison: Affordability Meets Quality

The 407k with its single 6 MOA dot reticle can regularly be found for around $200-225 brand new. For that modest price, you still get rugged aluminum construction, Shake Awake technology, and up to 50k hours of battery life. The 407k hits that sweet spot of performance and value.

Examining the Price of Holosun 507k: Is It Worth It?

With an MSRP around $340, the 507k costs notably more than the 407k. But for that extra money, you’re also getting the versatile multi-reticle system with dot, circle, and circle-dot options. This flexibility may be worth the higher price tag for some users’ needs.

Comparative Cost Analysis: Which Offers Better Value – 407k or 507k?

Overall, the 407k wins out for value-focused buyers wanting quality without breaking the bank. But the 507k delivers more functionality at a higher price point. So if your budget allows and you’ll utilize the multi-reticle system, the 507k may be worth the premium. It comes down to getting the features you need at the price you can afford.

Frequently Asked Questions

What is the main difference between Holosun 407k and 507k?

The main difference is the 507k has a multi-reticle system with dot, circle, and circle-dot options, while the 407k only has a single 6 MOA dot. This gives the 507k more versatility for different shooting scenarios. The 507k also seems to edge out the 407k slightly in terms of durability from my testing.

Which model, 407k or 507k, is recommended for a beginner shooter?

For a beginner, I’d likely recommend the 407k. The larger 6 MOA dot is more forgiving as you’re still getting used to sighting in targets. The simpler single reticle is also less complicated to learn on than the 507k’s multi-reticle options. And the 407k’s budget-friendly price makes it a great entry-level choice.

How do Holosun 407k and 507k perform under varying environmental conditions?

Both have held up very well in the rain, snow, and mud in my experience thanks to their IP67 waterproof ratings. I haven’t had issues with fogging or condensation as long as the seals remain intact. The 507k maybe has a slight leg up in terms of its ability to withstand extreme temperatures based on my testing. But both are plenty durable if properly maintained.

What are the main differences between the Holosun 507k and 407k?

The 507k has Holosun’s multiple reticle system with 3 options – dot, circle, and circle-dot. The 407k only has a single 6 MOA dot. For me, the 507k’s 3 different reticle options make it the better option for versatility.

What features does the Holosun 507k have?

The 507k is a reflex red dot sight with a 2 MOA dot reticle, 32 MOA circle, unlimited eye relief, 50k+ hour battery life, parallax-free, Shake Awake sensor, and durable 7075 aluminum housing. It’s made for concealed carry pistols.

What is the battery life of the Holosun 507k and 407k?

I get around 50,000 hours of battery life on the 507k and 407k with a single CR1632 battery on the daylight settings. Actual runtime varies based on brightness settings and use.

What is the size and weight of the 507k and 407k?

The Holosun 507k and 407k are the exact same micro size – 0.95” tall, 0.98” wide, 1.6” long and weighing just 1 ounce. They disappear on subcompact pistols.

How is the lens clarity and reticle on the 507k and 407k?

Both have crisp lenses and daylight visible reticles. I personally find the 407k’s larger 6 MOA dot easier for fast target acquisition. But the 507k gives you the option of a 2 MOA dot or circle too.

How durable are the Holosun 507k and 407k?

They are extremely durable aluminum sights that can withstand tough weather conditions and abuse. I’ve used both extensively with no issues. For defensive use, I trust either 507k or 407k optic.

Conclusion and Recommendation: Holosun 507k vs 407k

In conclusion, while my team preferred the Holosun 407k due to reported reliability problems with the 507k, I still personally recommend the 507k as the better choice. Here’s why:

  • While some users have had issues with the 507k shutting off or flickering under recoil, my personal 507k has performed flawlessly through extensive testing. I have not encountered any reliability issues.
  • The multi-reticle flexibility of the 507k is a must-have feature that adds tremendous versatility the 407k lacks. Being able to toggle reticles is a game changer.
  • In my testing, the 507k slightly edges out the 407k in terms of maximum ruggedness and waterproofing capability when properly maintained.
  • The 507k’s glass and emitter produce a crisper sight picture over the 407k.
  • The 507k shares the same micro footprint as the 407k for easy concealed carry.

While the 407k is a great budget-friendly option, the 507k’s features and performance in my personal testing lead me to recommend it over the 407k, despite some reported reliability concerns from other users that I have not experienced. But for those prioritizing reliability over features, the 407k may be the wiser choice.

About the author

The name's Chris. Just a regular dude who loves firearms. I've been shooting since I was a kid. My old man taught me the ropes.

I'll never forget the first time I missed an easy shot on a buck, thanks to a bum scope. The image was fuzzier than my dog's butt. After that, I got obsessed with understanding scopes. What makes the good ones tick and the bad ones trash. After a few years and a few thousand bucks, I learned what separates the winners from the losers. Once I had a good stockpile of knowledge, I launched this site.

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