Holosun 509T-X2 MOA Dot or 32 MOA Circle Miniature Red/Green Dot Sight FDE

MSRP: $505.87 - $541.16
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(5 customer reviews)

The HE509T-RD X2 is an enclosed reflex optical sight designed for pistol applications. Features include a Titanium housing, Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake. This X2 version adds improved glass clarity, Lock Mode, and a full Multi-Reticle System providing 32MOA circle with 2MOA dot, dot only, or circle only reticle options.

The included 509T RMR adapter plate is not compatible with ZEV or Shadow Systems style RMR interfaces.



Item Dimensions


In the Box

  •  RMR Adapter
  •  T10 L Key
  •  User Manual
  •  CR1632 Battery
  •  Lens Cloth



  • Reticle: 2 MOA Dot & 32 MOA Circle
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes


  • Power Source: Solar & Battery
  • Battery Type: CR1632
  • Battery Life (Hours): 50000
  • Brightness Settings: 10 DL & 2 NV


  • Window Size: 0.66×0.9
  • Dimension (in): 1.6×1.16×1.13
  • Weight (oz): 1.72


  • Housing Material: Titanium
  • Surface Finish: Titanium
  • Adjustment per Click: 1 MOA
  • W&E Travel Range±: 30 MOA


  • Storage Temperature: -40℃~70℃
  • Working Temperature: -30℃~60℃
  • Submersion: IP67
  • Vibration: 5000G

Additional information

Weight 8 oz
Dimensions 8 × 6 × 6 in
Dot Color

Red, Green

5 reviews for Holosun 509T-X2 MOA Dot or 32 MOA Circle Miniature Red/Green Dot Sight FDE

  1. Haxwell (verified owner)

    Great red dot with lots of options, great price as always from BTO

  2. mario_slaton (verified owner)

    This is my favorite red dot with all its features and BTO had the best price online for the 509T in FDE, so this was a no brainer. The shipping was fast and I had the product in hand and mounted on my 19X in a few days.

  3. ryanisfuller1808 (verified owner)

    Excellent enclosed red dot that has tons of features, long battery life, shake awake, solar fail safe and auto shut off

  4. mateothe7th (verified owner)

    I personally love the 509T and as soon as I saw it being offered in FDE it was a definite for me. Using it as a 12:00 mount is just sweet and obviously not functionally any different, but why not get it in a cool color too?

  5. jonathan-1393 (verified owner)

    I have an astigmatism in my dominant eye and have really been enjoying the two 509Ts I own both with red reticles. When I purchased the 509T in FDE I decided to give the green reticle a try as I had read here and there it might improve the clarity of the reticle to my astigmatic eye. For me this was not the case (astigmatisms are unique for every person) and the green reticle to my eye actually appeared far worse. I just repurchased the 509T in FDE with the red reticle and am sure it will be identical to my black 509Ts. So my comments are not at all a criticism of the excellent and affordable products Holosun have been brining to market but more a reminder that if you have an astigmatism a green reticle may or may not improve the clarity of the reticle. Outside of this I think it’s great Holosun really listens to the market and has offered the 509T in FDE. FOV (Field of View) is exponentially larger than the RMR, Acro P2 etc you get more features, and the optic is far more affordable.

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