Holosun 509T 2 MOA Dot or 32 MOA Circle Miniature Red Dot Sight


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This is NOT the X2 version. Find the X2 here.

(20 customer reviews)

The new HE509-T  Micro Red Dot System from Holosun is an enclosed reflex optical sight designed for pistol applications, clear glass and a rugged Titanium housing. It is powered by a CR1632 battery and Holosun’s innovative Solar Fail-safe back up. The HE509T will run over 5 years on a single battery on setting 6, dot only. Featuring Holosun’s Multi-reticle system, the HE509T allows the operator to switch the reticle between a 32 MOA circle with 2 MOA dot, or a 2 MOA dot only, all at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary. It comes equipped with Holosun’s Shake Awake technology with last setting recall. This optic has all of Holosun’s features in one tough, small package. Fits RMR mounts and most milled slides. Included adapter plate is not compatible with ZEV or Shadow Systems RMR cuts.


  • Parallax free optical design
  • Multi-reticle System
  • Shake Awake technology with last setting recall
  • Solar cell and battery dual power supplies


Item Dimensions



  • 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 Setting 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

20 reviews for Holosun 509T 2 MOA Dot or 32 MOA Circle Miniature Red Dot Sight

  1. battenfield.daniel (verified owner)

    Amazing dot

  2. Carlos (verified owner)

    Got this version cause of the price drop. Works great, good enough vs the Acro.

  3. jonathan-1393 (verified owner)

    I have four 509Ts now and it’s my favorite optic as far as price and value. The FOV is fantastic and exponentially larger when compared to optics like the RMR, Acro P-2 (I own multiples of both). In a sense Holosun has left the rest of the industry in the dust and you can see many of their optics being fielded in Ukraine. I’d be so curious to hear first hand reports of how they’re all holding up and think Holosun owners would be pleasantly surprised.

  4. Zach (verified owner)

    Good optic, great closeout price on this.

  5. JO (verified owner)

    Good quality optic you would expect from Holosun.

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