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Holosun HE509-RD Enclosed Solar Powered Red Dot

Original price was: $489.99.Current price is: $449.99.

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Holosun HE509-RD Enclosed Solar Powered Red Dot

The Holosun HE509-RD is an enclosed solar powered red dot sight that features a re ACSS Vulcan reticle. The pistol sized red dot sight allows for a large field of sight and has the features that allow you to sight in quickly and acquire the target and the location you intend to hit. What’s so neat about the Holosun HE509 is that the entire sight system is fully enclosed in light and rugged aluminum.  Built to provide enhanced environmental protection and abrasion and shock protection, the HE509 Red Dot Sight protective housing stands head and shoulders above an open form reflex form factor.

Note: The 509 ACSS model does not share the same footprint as the 509T (non-ACSS models) and therefore is incompatible with aftermarket mounting solutions and custom cut slides for the 509T (non-ACSS models).

Holosun HE509-RD Features

Solar Failsafe

The Holosun HE509 Red Dot Sight uses Solar Failsafe technology to power the optic providing the shooter or operator with a consistent, and very reliable point of aim.  Another feature you simply don’t expect with a lithium powered optic sight such as this is you don’t have to worry about turning it on or forgetting to turn it off.

Shake Awake Technology

The Holosun Red Dot Sight uses patented Shake Awake™ technology which senses motion to power the sight on and off.  In addition, Holosun manufactured this little sucker with a brain that “recalls” your last setting and makes sure you don’t lose those customized settings once the sight system turns off.

Battery Life

Worried about battery life?  The Holosun HE509 Red Dot Sight offers up to 20,000 hours of battery life. Simply put, we don’t think you’re going to have to worry about buying a new battery for this sight system for quite a while.  All versions of the Holosun Red Dot Sight system are projected from the same LED, so you don’t have to worry about having to re-zero when changing reticles.

The revolutionary patent pending ACSS Vulcan reticle provides a large circle guiding the eyes towards the 10 MOA center chevron, eliminating one of the biggest challenges for shooters new to slide mounted red dots. If you are off center, a portion of this outer circle will appear in the window to give you an instant reference on how to get centered. The circle phases out of the sight window completely when the center chevron is properly aligned in the sight window. This patent-pending reticle function significantly improves sight acquisition. It takes the common frustration of hunting for the center reticle out of the equation. Don’t need the circle? It can be easily deactivated to extend the battery even further.


Color Black
Finish/Material Aluminum
Adapter Plate 507C Mounting Plate

MOS Mounting Plate

Reticle ACSS Vulcan
Illumination Type LED
Illumination Color Red
Brightness Settings 12
Eye Relief Unlimited
Length 1.78”
Width 1.22”
Height 1.14”
Weight 2 oz
Battery Life Up to 20,000 Hours
Battery Type CR1632 3V Lithium Coin
Click Value 1 MOA
Finish Hardcoat Anodized



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