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Questions & Answers
Can I run this optic with just the 32MOA Circle reticle. And what does the X2 designation mean?

The x2 version addressed the lens distortion issues found on the prior version.

by Frank, Verified Owner, November 27, 2021
Customer Reviews
Helpful Positive Review amazing quality, no crooked circle, crisp dot, well worth it by Sully C, Verified Owner, January 22, 2022
I could go on and on about how amazing this thing is. But I’ve had no problems, in approx 3500 rounds with this optic. Super rugged, and just as bright as my RMR. Until trijicon comes out with an enclosed emitter optic, I see no reason to run any oth...
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10/10 found this helpful
Helpful Positive Review Holosun HE509T by James, Verified Owner, March 3, 2024
Excellent optic and reticle is clear and easy to see. Enhances shooting makes shooting targets at 27 yards as easy as shooting at 7 yards.
1/1 found this helpful
Helpful Positive Review Big view and well made by Mick Lim, Verified Owner, February 6, 2024
This is the closed emitter optic that protected dust and water. I bought acro p2 along with 509 to put on my pdp full size and compact. To be honest, there are pros and cons on those two optic . However, I finally picked the 509t over acro p2 due to ...
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1/2 found this helpful
Helpful Positive Review 509T X2 is a top line offering by Boom, Verified Owner, January 31, 2022
Very surprised in how happy I am with this sight. My first go to red dot is an SRO, I say this because I have very high standards with equipment and the 509T X2 didn’t let me down. The only reason I didn’t give it 5 stars is on one side of the rear g...
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9/9 found this helpful
Helpful Positive Review The perfect pistol optic by Kyle Gibson, Verified Owner, May 14, 2022
So this is not my first pistol optic and it's not my first Holosun either. I love Holosun and can't say anything bad about any of their products, but this is by far my new favorite. I've owned 407s, 507s, and 510s and all though I'd rate them all 5 s...
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6/6 found this helpful
Helpful Positive Review Improved over original by FishMD, Verified Owner, December 28, 2021
So at first I got the older version of this optic. (Non-x2). That was honestly a disappointment. Glass was pretty tinted and there was a pretty bad amount of distortion of the lense around the edges, plus a lot of glue. This version (x2) is way be...
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24/26 found this helpful
Read All 40 Reviews

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Product Info for Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight

Designed for pistol applications, the new Holosun HE509T X2 features Super LED technology with an impressive 50k hours of battery life and Solar Failsafe technology that keeps you powered in the rare event of battery failure. Shake Awake technology activates the LED during periods of motionlessness and can extend battery life to upto 100K hours in some cases. These Red Dot Sights are encased in durable Grade 5 titanium housing that withstands seawater all while keeping fatigue at bay.image

WARNING: California`s Proposition 65

Specifications for Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight:

Manufacturer: Holosun
Fabric/Material: 7075 Aluminum
Magnification: 1 x
Objective Lens Diameter: 0.66 - 0.9 in
Reticle: 2 MOA Dot, 2 MOA Dot & 32 MOA Circle, 32 MOA Circle
Illumination Type: LED
Brightness Settings: 10
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Parallax: Parallax Free
Optical Coating: Multi-Coated
Battery Type: CR1632, Lithium
Battery Quantity: 1
Operating Temperature: -30 - 60 Celsius
Water Resistance Level: IP67
Length: 1.61 in
Width: 1.21 in
Height: 1.35 in
Weight: 1.72 oz
Package Type: Box
Quantity: 1
Attachment/Mount Type: Picatinny
W/E Travel at 100 Yds: 30 MOA

Features of Holosun HE509T X2 Enclosed Reflex Optical Sight

  • CR1632 battery port does not require removal of optic from firearm.
  • Improved programming that enhances usability.
  • Addition of Lock Mode: Lock mode locks out the buttons until a deliberate long press unlocks them.
  • Improved glass clarity.
  • Auto mode now runs in the background and offers solar power when there is no battery or dead battery.
  • Up to a 50,000 Hour battery life.
  • Solar Failsafe.
  • Multi-Rectical System (MRS): 32 MOA Circle & 2 MOA Dot; 2 MOA Dot; 32 MOA Circle.
  • Shake Awake Technology.
  • CNC Milled 7075 Aluminum Housing.
  • Reticle Brightness: 10 Daylight & 2 Night Vision Compatible Settings.

Package Contents:

  • Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight
  • RMR-to-509T Adapter
  • T10 L Key
  • User Manual
  • CR1632 Battery
  • Lens Cloth

Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight Orderable Models

List of Orderable Models

Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight 1x, Red LED, Black, HE509T-RD X2 , MPN: HE509T-RD X2 , UPC: 810047071600 , Code: 28Y-RD-HS1011-HE509T-RD-X2
Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight, Red LED, Flat Dark Earth, HE509T-RD X2 FDE , MPN: HE509T-RD X2 FDE , UPC: 810047073109 , Code: 28Y-RD-HS1011-HE509T-RD-X2-FDE
Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight 1x, Green LED, Black, HE509T-GR X2 , MPN: HE509T-GR X2 , UPC: 605930625868 , Code: 28Y-RD-HS1011-HE509T-GR-X2
Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight, Green LED, Flat Dark Earth, HE509T-GR X2 FDE , MPN: HE509T-GR X2 FDE , UPC: 810047073116 , Code: 28Y-RD-HS1011-HE509T-GR-X2-FDE
DEMO, Holosun HE509T X2 Enclosed Reflex Optical Red Dot Sight, Green LED, Flat Dark Earth, HE509T-GR X2 FDE , MPN: HE509T-GR X2 FDE-DEMO , Code: 28Y-RD-HS1011-HE509T-GR-X2-FDE-DEMO
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