HOLOSUN HE509T X2 Reflex Pistol Sight - Shake-Awake Parallax-Free Enclosed Sight with MRS - RMR Adapter Included - Red/Green
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Availability:
In Stock.
Arrives
Wednesday, Feb 18
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Color: Red 2 MOA Dot & 32 MOA Circle (HE509T-RD X2)
Features
- RED DOT REFLEX SIGHT - The HE509T-RD X2 is a hard-use, nitrogen-purged enclosed LED sight designed for handgun applications; It features a grade 5 titanium housing, Super LED with up to 50k hour battery life, and 12 reticle intensity settings; An adapter plate for compatibility with RMR footprints is included
- MULTI-RETICLE SYSTEM - This Holosun reflex sight is equipped with MRS to let you select a fast sight picture for shorter distances with a 32 MOA circle with 2 MOA dot; The large circle allows for a hold-over reference and helps guide your eye to the 2 MOA dot; The large ring can be deactivated leaving just the 2 MOA dot for an uncluttered sight picture and increased precision
- SHAKE AWAKE TECHNOLOGY - Extends battery life by deactivating the optic's LED while not in use; Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred; The slightest touch of the optic instantly reactivates the LED so your Holosun reflex sight for pistol is ready when needed
- SOLAR FAILSAFE - If your battery fails, this reflex red dot sight has a backup power source when natural or artificial light is available; Solar Failsafe is activated while in Auto Mode where reticle intensity is automatically adjusted: in brighter conditions, you have a brighter reticle and in lower-light conditions, the reticle will step down in intensity to match any lighting conditions
- SPECIFICATION - Reticle: 2 MOA Dot & 32 MOA Circle; Light Wavelength: 650nm; Magnification: 1x; Parallax Free & Unlimited Eye Relief; Power Source: Solar & Battery; Battery Type: CR1632; Battery Life (Hours): 50000; Brightness Setting: 10 DL & 2 NV; Window Size: 0.66x0.9; Adjustment per Click: 1 MOA; W&E Travel Range: 30 MOA
Brand: HOLOSUN
Color: Red 2 MOA Dot & 32 MOA Circle (HE509T-RD X2)
Style: red-dot-sights
Sport: Archery
Item Weight: 1.76 ounces
Material: Titanium
Magnification Maximum: 1 x
Magnification Minimum: 1 x
Compatible Devices: Handgun
Mounting Type: Weaver Mount
Brand: HOLOSUN
Color: Red 2 MOA Dot & 32 MOA Circle (HE509T-RD X2)
Style: red-dot-sights
Sport: Archery
Item Weight: 1.76 ounces
Material: Titanium
Magnification Maximum: 1 x
Magnification Minimum: 1 x
Compatible Devices: Handgun
Mounting Type: Weaver Mount
Night vision: No
Hand Orientation: both
Thread Type: Weaver #322-2048
Model Name: Holosun HE509T-RDX2 Red Multi-Reticle, Titanium, Enclosed, Solar, Shake Awake, Pistol
Manufacturer: Holosun
Reticle Type: Circle-Dot
Lens Color: Red
UPC: 810047071600
Global Trade Identification Number: 00
Item Package Dimensions L x W x H: 4.72 x 3.58 x 2.48 inches
Package Weight: 0.26 Kilograms
Item Dimensions LxWxH: 4.75 x 3.75 x 3 inches
Brand Name: HOLOSUN
Suggested Users: unisex-adult
Number of Items: 1
Part Number: HE509T-RDX2
Included Components: Holosun HE509T-RDX2 Red Multi-Reticle, Titanium,
Size: 1.6" x 1.16" x 1.13"
Date First Available: October 20, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Feb 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Red 2 MOA Dot & 32 MOA Circle (HE509...
I recently mounted the Holosun HE509T on my Glock 47, and I couldn’t be happier with the setup. The installation was straightforward, and it fit perfectly without any issues. The red dot is bright, clear, and easy to acquire quickly, which makes target transitions smooth and fast. I’ve used it for both range sessions and dry-fire practice, and it’s incredibly reliable. The sight holds zero perfectly, even after repeated shooting, and the battery life is impressive. I also appreciate the rugged build—it feels solid and durable, exactly what I want on a handgun. If you’re looking for a dependable, high-quality red dot for your Glock, the Holosun HE509T is an excellent choice. It’s made my shooting more precise and enjoyable.
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Reviewed in the United States on August 30, 2025 by julius
Color: Red 2 MOA Dot & 32 MOA Circle (HE509...
Great product!
Reviewed in the United States on October 18, 2025 by Amazon Customer
Color: Red 2 MOA Dot & 32 MOA Circle (HE509...
This has really helped my shooting but it does have a learning curve if you’re used to fixed sights. It took a little getting used to however the twin reticle helps me with shots further down range. Have it on my Glock 40 MOS 10mm gen 4. It replaced an older, more expensive red dot. I like the green as it’s easier on the eyes (for me). Mostly I do indoor range target shooting. I have a few other Holosun sights & they’re all good but I like this one best. It’s very rugged, versatile & the enclosure is worthy also, keeps the crap out. I like that I can mount it on some of my other firearms & also can be as usable on a shotgun.
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Reviewed in the United States on April 23, 2025 by Macman
Color: Red 2 MOA Dot & 32 MOA Circle (HE509...
Solid red eye, but may negate your sights, the red eye is high if your sights are low or even medium like mine. Otherwise, perfect red eye. Holds zero, doesn't flinch if you use it as the rack slide. sight it at 15 or 20 meters, or yards, go home, sleep well. This thing self charges with sunlight, so spend time outside with your gun. Day at the range, less batteries. Clearly, bullets cost more than batteries. Adjust to your finances. If you cannot afford bullets or batteries, you are in the wrong review. But possibly have the right gun? Turn yourself in. PS. Using this with an M&P 10 MM Performance Center pistol. Cast your hate aside, this works.
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Reviewed in the United States on July 9, 2025 by Scott Williams
Color: Red 2 MOA Dot & 32 MOA Circle (HE509...
The HOLOSUN HE509T X2 Reflex Pistol Sight is a game-changer in the world of optics. Its 'Shake-Awake' feature ensures that the sight is always ready when you are, and the enclosed design offers unbeatable protection from external elements. The clarity and precision offered by this sight are unparalleled, ensuring that every shot is on target. The parallax-free design further elevates accuracy, making target acquisition faster and more intuitive. Built with ruggedness in mind, yet not compromising on its aesthetic appeal, the HE509T X2 is a perfect blend of functionality and style. Whether you're a professional shooter or a hobbyist, this sight will not disappoint. A top-tier product from HOLOSUN that truly enhances the shooting experience!
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Reviewed in the United States on October 26, 2023 by T
Color: Green 2 MOA Dot & 32 MOA Circle (HE5...
I have been using this for a while now and love it. I like the green over the red and they say it’s better for older eyes and those who have an astigmatism. Still have the original battery in going strong. I like the choices for auto brightness or setting what you want. I also like the choices of dot, circle, or circle and crosshair. I took a two day class and feel very comfortable using this on my gun!
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Reviewed in the United States on November 30, 2024 by EPD073
Color: Green 2 MOA Dot & 32 MOA Circle (HE5...
I installed this on a new Glock 9–my first pistol. I took a basic shooting course and the instructor helped me align the indicator (I like the dot) for accuracy. This fits nicely into the mounting on the gun and is easily seen when aiming at the target. I’m still in the rookie stage of learning to shoot a hand gun, but I can see where using a gun without a unit like this would make the task more difficult. This one’s a winner!
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Reviewed in the United States on December 7, 2024 by Jim 201
Color: Green 2 MOA Dot & 32 MOA Circle (HE5...
Bottom line: This site won't zero and won't mount out of the box unless it's being mounted on a non-existent slide with a native RMR slide cut, which no brand firearm that I know has. Out of the box before shooting, this site won't achieve and keep zero. The windage and elevation adjustments reverses in real time while adjusting. In other words, left is right and then right is left and the same for up and down. I can zero it and then and then tap it firmly on the top and knock it out of zero. Furthermore the base is so thick that it's questionable whether my suppressor height sights are tall enough to co-witness over the base. I have it installed on the RMR /MOS Glock adapter plate and it's the base is slightly higher than the top of my rear suppressor height sight. When I get the proper plate I'll be able to reduce the height by the MOS/RMR plate, a scant 1/10th inch, which may be barely enough to get a sight picture with my BUIS through the very bottom of the dot sight's window . In addition, this sight only comes with two screws which are too long and ran right through my MOS plate and broke it off my slide before I got the screws tightened down on the 509t's plate! So I found other screws they were too long in the wrong heads and spent a couple hours filing them down to the proper length to mount this thing. Which is when I was able to determine that it won't hold zero after mounting it and trying to zero it this morning. Beyond that, the 32 MOA circle reticle with the quadrant hash marks just creates a huge blur in the middle of screen. It's too small even without the dot in the middle on. It obscures the target. The hashes on the circle add to the blur effect. However,Unlike the 507c, the ambient light adjustment does seem to work. The 507c's automatic ambient light adjustment adjust way too dim in every light situation. Compared to the Trijicon RCR, another closed emitter sight: at twice the cost the RCR has a dot reflection on the back glass one set on brightness seven, that disrupts my presentation index. I have to set the brightness index on seven for outside which is way bright inside because the RCR has no ambient light adjustment and I'm not going to bet my life on remembering to adjust the brightness through my t-shirt blind every time I go inside or outside. It has to be a set and forget which has to be set to the brightest light situation. Then when I come inside it's too bright, which reflects on the back window and throws off my indexing. In fact It doesn't just throw my indexing off, it obliterates it . So this 509t doesn't have the back window reflection in any brightness that the RCR costing twice as much has. However, it won't zero and won't mount out of the box unless it's being mounted on a non-existent slide with a native RMR slide cut, which no brand firearm that I know has.
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Reviewed in the United States on December 3, 2025 by eotrbuR