HOLOSUN 507K X2 – Multi Reticle

10 customer reviews



The HE507K X2 is an open reflex optical sight designed for concealed carry pistol applications. The X2 Series pistol optics feature two improvements. First is the addition of Lock Mode from our 2018-2019 LE pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Second, the buttons have been redesigned to compliment the Lock Mode by placing them lower and out of the way. Additional features include Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, and Shake Awake.

In the Box

  • Multi Tool
  • User Manual
  • Lens Cloth

In most cases in stock optics ship within 24 hours with a tracking number.




  • Reticle – 2 MOA Dot & 32 MOA Circle
  • Light Wavelength – 540nm
  • Reticle Color – Red or Green (optional)
  • Parallax Free – Yes
  • Unlimited Eye Relief – Yes
  • Magnification – 1x
  • Multi-Coatings – Yes


  • Power Source – Battery
  • Battery Type – CR1632
  • Battery Life (Hours) – 50000
  • Brightness Setting – 10 DL&2 NV


  • Window Size – 0.58×0.77
  • Dimension (in) – 1.6×0.98×0.95
  • Weight (oz) – 1


  • Housing Material – 7075 T6 Aluminum
  • Surface Finish – Anodize
  • Adjustment per Click – 1 MOA
  • W&E Travel Range – ±30 MOA


  • Storage Temperature -20℃~65℃
  • Working Temperature -20℃~51℃
  • Submersion – IP67
  • Vibration – 5000G

Additional information

Weight 0.375 lbs

Red, Green

Based on 10 reviews
Write a Review

  1. Francisco Santiago

    I have astigmatism and tried a red dot before getting this one and the dot was not so great to my eyes. I was told to get a green dot with a circle dot and it was the best desicion. Not only I can see it much better but it’s crisp and I can adjust manually to suit my eyes. Tacrig shipped my order very quickly and I got it in 5 days. Considering the order was made on a weekend I was very surprised to receive it so quick. I also got an excellent black Friday deal that beat all other places (and I looked everywhere)

  2. Daniel Maldonado (verified owner)

    Love the green clear reticles on my Hellcat specifically since I have a very bad astigmatism
    My eyes easily pick up my point of aim so easy now. Can’t express enough how your products are the best in the market.
    Mr. Daniel Maldonado

  3. Antony Field (verified owner)

    good for those of us with astigmatism

  4. Darell Ruda (verified owner)

    Super fast shipment. Received shipment notification within 24hrs. I bought it to test out if it will help with my astigmatism. It somewhat did but this is my first 508T and so far i’m impressed with the product.

  5. htburgess (verified owner)

    The cataracts on my ancient eyes make using a red dot sight an almost impossible effort. The Holosun 507K green dot is still cataract sparkly but much more clear than red. It is a welcome change. I just need to work my muscle memory of drawing and acquiring a sight picture. I would have no trouble at close range point shooting as I gained those skills years ago in IPSC competition.

  6. Ted Wilson (verified owner)

    This optic works great with my Canik TP9 SC. I love the green reticle and the size of the entire unit is perfect for CCW. Tacrig shipped extremely fast and was pleasant to deal with. I will definitely buy from them again.

  7. george foundas (verified owner)

    507k Great optic, same with all my holosuns, real champ here is Tacrig for great price and SUPER FAST delivery!

  8. Ted Coggins (verified owner)

    Great product but the product can be bought anywhere. What makes Tacrig stand apart from other distributors is the amazing customer support.
    You can take your time and ask questions without the pressure of buying. So will I continue purchasing from Tacrig? Absolutely. This is now my number 1 place to purchase. I hope this helps.

  9. chriskerby (verified owner)

    Works great. Direct bolt on for my P365.

  10. Gabriel (verified owner)

    Great company to buy from and great sight to buy, 3 reticle options

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