Holosun 509 Enclosed Solar Powered Red Dot Sight with MOS Mounting Plate - ACSS® Vulcan®
Details
Details
The Holosun 509 is a fully enclosed pistol red dot sight that comes with the ACSS Vulcan Reticle designed to improve speed and accuracy. The revolutionary patented 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.
Features:
- Includes a GLOCK MOS adapter plate
- ACSS Vulcan reticle in red
- 12 Brightness settings
- Fully enclosed design
- Solar Failsafe and Shake Awake technology
- Aluminum construction with anodized finish
- CR1632 Battery with up to 20,000 hours of battery life
- Length: 1.78”
- Width: 1.22”
- Height: 1.14”
- Weight: 2 Oz
The Holosun HE509 Red Dot Sight features Solar Failsafe™ technology that will keep your reticle illuminated should your battery ever run out. Additionally, the Shake Awake™ technology allows the reticle to shut off when not in use and instantly turn on when it senses movement further extending the battery life. The closed emitter red dot sight style ensures your optic is always working rain or shine keeping water, dirt, or debris from covering the emitter while also preventing the lens from fogging up. The housing is machined from aluminum and hardcoat anodized for durability while only weighing in at 2 ounces. Comes with a GLOCK MOS mounting adapter plate, so you can easily get it mounted to your handgun right out of the box.
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).
Specifications
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
14 reviews
Great!
by Ty -
Loving the sight so far. Shipping was fairly quick. And well packaged
So far its great.
by Jason -
Adaptor plate fits well on G5 19 MOS. Battery access without optic removal should be a feature of every optic. 250 MOA reticle works as advertised, speeds up chevron acquisition greatly. Have about 400 rounds with optic mounted with no issues. Would like to see a small dot instead of the chevron. Chevron is larger than a 2.5 moa dot.
Worked for p10 with cz custom adapter plate
by Nathan
I bought an OB model for my P10S optics ready, the MOS plate is very similar but it won't fit. However, the cz custom adapter plate for the 509 and p10 series fit the optic perfectly.
Not Perfect, but Damn Fine
by Nathan
Bad news first. The auto-adjust brightness setting is nowhere near as good as it is on an RMR and it washes out even in indoor areas with varying lighting. But every Holosun I’ve tried is plagued with that issue. Thus, I’m not sure how well the battery will last with it on the third-to-highest brightness setting.
Secondly, and this is much less the fault of the optic and more the MOS system itself, but the mounting plate came loose after about 150 rounds. It’s now at 300+ rounds after applying copious amounts of blue Loctite.
Good news now. Most importantly, it succeeds in its primary goal in being faster than optics with single dots. I’ve tested this 509 up against my RM06 with many reps of different drills (drawing, low ready, unconventional shooting positions…) and it’s anywhere from 2% to 10% faster. That’s significant enough for me to make it my primary pistol optic given more durability testing, which is my current goal.