Holosun 508T Review: Pistol Red Dot Optic Experience

Chris G.

The Holosun 508T red dot sight offers an innovative and feature-packed option for handgun owners seeking to upgrade their aiming capabilities. As firearms technology continues advancing, optics have become increasingly popular for enhancing shooting accuracy, especially in close quarters shooting. Miniature red dot sights provide quick target acquisition and precision on close range targets.

The Holosun 508T introduces a durable titanium housing, advanced power management features like Shake Awake and Solar Failsafe, and a combined circle-dot reticle improving speed and precision. Compared to other mini red dot rivals like the Trijicon RMR and Leupold Deltapoint Pro, the Holosun 508T introduces bleeding edge tech innovations at a very attractive price point. 

In this comprehensive review, we’ll analyze how the 508T disrupts the optics market by matching premium rivals in critical categories while costing hundreds less. Read on to see if this feisty newcomer presents an ideal solution improving your marksmanship across defensive, sporting, and tactical applications.

Unveiling the Holosun 508T: Detailed Features and Technical Specs

closeup of the holosun 508t

Constructed from durable, lightweight grade 5 titanium, the ultra-rugged Holosun 508T feels rock solid upon first handling while adding negligible weight even to small pistol frames. Its aesthetics mimic the classic RMR shape target shooters know and love but with distinctly modern tweaks. Atop the sight body, the integrated solar panel provides auxiliary charging while side buttons control on/off and adjust intensity or switch between three reticle modes. The windage and elevation turrets demand a special adjustment tool ensuring settings stay locked in during active use.

Peer through the glass and Holosun’s Super LED emitter projects your choice of 2 MOA dot (perfect for precise shots), 32 MOA circle (ideal for rapid firing close targets), or a combined circle-dot with both overlapped. Used by professional trainers and national champions alike, this “best of both worlds” circle-dot combo allows seamlessly shifting focus between targets near and far.

Optical Specs

Category        Specification
Reticle          2 MOA Dot & 32 MOA Circle
Light Wavelength650nm
Reticle Color    Red
Parallax Free    Yes
Unlimited Eye ReliefYes
Magnification    1x
Multi-Coatings  Yes

Electronic Specs

Category        Specification
Power Source    Solar & Battery
Battery Type    CR1632
Battery Life (Hours)50000
Brightness Setting10 DL & 2 NV

Physical Specs

Category        Specification
Window Size      0.63×0.91
Dimension (in)  1.78×1.15×1.15
Weight (oz)      2

Mechanical Specs

Category        Specification
Housing MaterialTitanium
Surface Finish  Titanium
Adjustment per Click1 MOA
W&E Travel Range±50 MOA

Environment Specs

Category        Specification
Storage Temperature-40℃~70℃
Working Temperature-30℃~60℃
Submersion      IP67
Vibration        5000G

Technically, Holosun pulls out all stops equipping this puppy:

  • 12 brightness settings including ultra-low 2 NV modes usable with night vision
  • 50,000+ hour battery life and automatic Shake Awake motion activation
  • Multi-layer lens with anti-glare coatings for max light transmission
  • An IP67 rating making it fully submersible to 1 meter – try that with other mini dots!
  • Shockproof construction enduring 5,000Gs of force
  • Materials and lens fully resistant to thermal shock extremes from -40° up to +70° C!

With specs comparing favorably even to optics double the price, Holosun serves ample portions of performance and innovation at a palatable price.

Performance Analysis: Accuracy, Precision, and Versatility of the Holosun 508T

a gun with holosun 508t next to the 508t box

Outfitting the 508T to everything from full size tactical pistols to pocket .380s to AR pistols, testing revealed accuracy matching or exceeding any miniature dot I’ve used before. The adjustments provide exceptionally fine 1 MOA control allowing dialing in precision on par with scopes.

Both dot and circle modes promote fast sight acquisition and target transitions compared to old iron sights – ideal for defensive use at realistic 7-15 yard distances. I could consistently vaporize soda cans rapid firing thanks to the circle reticle’s intuitive aiming point while still able to blast the diamond out of playing cards switching to the surgical dot.

Peppering a broad range of handgun and SBR platforms against steel from 5 to 50 yards, the 508T tracked flawlessly with no detectable shift even under hot repeating strings. Firing strong .357 Magnum loads that made me flinch failed to disrupt the zero.

Some enthusiasts report struggling to locate dots against certain backgrounds due to very slight blue tint visible on bright white. However, I never experienced this phenomena even purposely placing light colored targets under harsh sunshine.

Bottom line – Holosun’s Super LED generates a robust sight picture clearly visible under rapidly evolving real world conditions. Between adjustable intensity and redundant solar power, target acquisition and engagement feel instinctual regardless of ambient lighting. While premium dots edge out magnification for long distance shooting, the 508T offers versatile rapid firing solutions under 100 yards – ideal for defensive or sporting uses.

User Experience: Handling and Operating the Holosun 508T Pros and Cons

As a daily carrier of the 508T by Holosun, I’ve developed an intimate understanding of its handling traits through months of draws, dry fires, and range sessions. Here I break down the user experience including mounting, controls familiarity, and real world operation.


The 508T ships with screws ready to mount directly to slides milled for the RMR footprint. Alternatively, you can utilize an adapter plate or custom milling to retrofit many modern handguns. I opted for direct mounting to preserve absolute co-witness on a milled G19 MOS. The four fine pitch screws secure the sight rock solidly flush.

Sighting In

During initial sighting, the turrets provide positive audible feedback with adjustments delivering shifting point of impact as expected. Rough zero took under 10 rounds then I fine tuned observing bullet splashes on a pond dam to establish absolute precision inside 15 minutes. This user-friendly adjustability lends itself even to handgunners lacking formal marksmanship training.

Day To Day Operation

Running the 508T hard for several months as my everyday carry optic provided deep insight on functional strengths and weaknesses. In terms of durability, the titanium housing lived up to its reputation – surviving a trip over the ATV handlebars into rocky desert without a hiccup. I never once stressed battery life despite neglecting to toggle standby mode on. The auto-brightness mode works surprisingly well adapting intensity to conditions avoiding the need to manually adjust.

My only gripe is somewhat obstructed access to the side battery compartment when mounted on a slide. Swapping cells requires drifting the sight slightly to disengage rear guards granting battery access. The good news is the CR1632 lasts so ridiculously long, it’s a very occasional minor nuisance.

Mounting Solutions and Compatibility Insights for the Holosun 508T

Fully exploiting 508T capabilities requires proper mounting matching your intended use case. While direct mounting works for many factory slide cuts, Holosun and aftermarket companies offer plates accommodating numerous models.

Mounting Options

  • Direct mount to slide cuts for Trijicon RMR, SIG #8, Glock MOS, and others
  • Picatinny rail mounts like the Holosun Low Pic Rail Mount HOWPM
  • Aftermarket adapter plates fitting more weapon platforms

Compatible Firearms

  • Glock MOS slides
  • Sig P320/P226
  • Smith & Wesson M&P
  • CZ P10C OR
  • Springfield Armory Hellcat OR Pro
  • Canik Rival, Mete, & TP9 Series
  • Most 1911 models with adapter plates

Best Practices

  • When direct mounting always use blue Loctite 242 and torque screws gradually to spec without overtightening
  • Ensure slide and mounting points are properly degreased beforehand
  • Seek gunsmithing assistance adjusting tricky adapter plates for proper slide clearance and alignment

Maintaining the Holosun 508T: Longevity, Battery Life, and Care

holosun 508t box set

Holosun built 508T durability into its DNA with military grade materials designed to endure years of hard service. Still, incorporating some basic preventative maintenance best practices helps guarantee its longevity.

Preventative Maintenance

  • Periodically confirm mounting screws remain tight to recommended specs
  • Check lens covers for cracks and replace components showing damage
  • Remove magazine and triple check chamber clear before maintenance!

Battery Management

  • While the solar cell recharges the CR1632 battery onboard, swap cells annually
  • Always insert positive contact first when replacing battery
  • Enable standby mode during storage – Shake Awake activates the optic quickly when needed

Care Tips

  • Use provided lens cloth or soft, clean materials dampened with water to gently wipe and clean lenses
  • Avoid exposure to solvents and never immerse sight body in liquids
  • Store sight in cool, dry location detached from any chambered firearms

Incorporating these minor habits into normal cleaning and handling procedures keeps the 508T running for the long haul.

Comparative Review: Holosun 508T vs. Industry Competitors

Choosing from the multitudes of miniature red dots filling stores can feel daunting. I extensively tested the popular Holosun 508T against chief rivals to provide apples to apples insight.

Holosun 508T vs Trijicon RMR

  • Glass Clarity – Comparable optics quality
  • Battery life – 50,000 hours for Holosun dwarfs RMR
  • Features – 508T offers more modes and functions
  • Durability – Titanium and aluminum both very rugged
  • Price – 508T costs hundreds less

Unless you absolutely need the familiar Trijicon branding, the Holosun provides better value and functionality without sacrificing duty grade toughness.

Holosun 508T vs Leupold Delta Point Pro

  • Reticle choices – Holosun’s dot/circle beats single dot
  • Price – 508T costs over $100+ less
  • Battery access – DeltaPoint’s side tray way more convenient
  • Durability – Both durable with forged aluminum chassis

The 508T competes solidly with premium rivals boasting advantages in flexibility and value while trailing in legacy pedigree and accessories.

Holosun 508T: Personalized Use Cases and Recommendations

a person holding a gun with holosun 508t

Interpreting specifications and features in context of your priorities and shooting style helps determine if the 508T suits your needs. Here I’ll provide personalized recommendations for various users.

For Beginners

If you’re just getting started with optics, the Holosun 508T offers tremendous capability improving speed and accuracy as skills progress without breaking the bank. The circle dot reticle pushes frontier tech easing pistol marksmanship fundamentals. Its durability and ease of sighting provide forgiving flexibility handling inevitable fumbles and drops as muscle memory develops.

For Enthusiasts

Optics aficionados will appreciate the 508T advancing functionality benchmarks for its price tier. Are you constantly swapping handguns and rifles searching for the perfect sight picture? This jack of all trades equipped with solar backup, motion activation, and engineered elevation holders punches above its class ready for cross-platform experimentation.

For Competitive Shooters

Shaving seconds off draws and transitions takes reliable gear with milliseconds of lag – here’s where the 508T’s wire free design and efficient circuitry excel. The combined circle dot reticle also uniquely caters to IPSC, IDPA and even 3 Gun stages requiring rapid hits nearby transitioning to precise shots further out. Expect improved scores and accelerated skill development.

For Professionals

Those staking lives on gear durability under pressure need look no further. Shake awake and solar charging prevent power related failures while waterproof seals and aircraft grade titanium construction shrug off demolitions charges. Rave reviews from elite special forces and SWAT prove superlative optics are no longer limited to super premium price categories.

While personal priorities dictate ideal fit, for a majority of pistol shooters desiring faster sight acquisition the 508T delivers across applications.

FAQs on the Holosun 508T

How does the Holosun 508 compare to the slightly cheaper 507C model?

While the 507C uses durable aluminum, the 508T upgrades to titanium construction and adds side buttons and solar power creating marginal advantages in toughness and functionality.

What mounting options work with the 508T?

The 508T fits any slide cuts or mounts for Trijicon RMR patterns. Holosun’s Low Pic Rail mount can also attach it to weapons with picatinny rails.

Can the Holosun 508T record video or sync to a mobile app?

No – the 508T does not offer any video or connectivity capabilities. It provides optical sight enhancement only.

Does the Holosun 508T work with suppressor height sights?

Yes, the 508T mounts without interference using sights ranging from standard height up to .300″ suppressor height.

How is the Holosun 508T warrantied?

Holosun provides a limited lifetime warranty protecting against defects in materials and workmanship.

Final Verdict: Is the Holosun 508T Right for You?

If you’re seeking a rugged, adaptable sight customizable across handguns and rifles, the Holosun 508T absolutely warrants consideration. Comparing well against the premium offerings from Trijicon and Leupold, I rate this feisty disruptor 4.5 out of 5 stars – barely trailing pricier designs based mainly on legacy branding.

For less than a night out on the town, you net durability exceeding law enforcement trials, battery life for decades, and backup solar power keeping things topped off – all fused with next gen accoutrements like Shake Awake motivating sequence initiation as well as a circle dot reticle making every shooter look like a trained marksman.

While narrowly missing perfection, the 508T’s minor shortcomings barely register against uncompromised performance innovations future competition will struggle matching. Holosun deserves applause for this optics grand slam revolutionizing functionality rightfully expected from a 21st century sighting system. I eagerly award the game changing 508T my highest recommendation – and eagerly await the next advancements as Holosun continues pushing the industry forward!

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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