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Holosun HE509T 2x 0.66 x 0.9 in Reflex Red Dot Sight
As Low As $429.99 Save 15%
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Most Helpful Positive Review Improved over original
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 better and certainly worth paying a bit more. I hav...
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Most Helpful Negative Review Not very happy
My optic was garbage. Glue all around the lens preventing co-witness (supposed to be fixed in X2), 32 MOA circle had crooked crosshairs. Then usps couldn't deliver return because "no access to location", and then the packaged was lost. Wierd how they give you a return label and tell u if you want to...
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Great Product (Holosun 509T)

by Trevor Shaffer, Verified Owner from SC, United States Written on February 11, 2026
Purchased for my Glock 45 and it has done a great job performing at the level I initially thought it would. Highly recommend.
Would recommend: Yes
Was it helpful to you? Yes | No

Clear glass, bright clean reticle

by Hrpman, Verified Owner from VA, United States Written on January 23, 2026
I bought this to top off a Beretta 1301 and so far I have had no issues after about 300rds, it has held zero perfectly and haven't had any flickering with recoil. The solar failsafe was also a deciding factor for me in making this purchase over an Aimpoint, but so far I do not regret choosing Holosun at all.
Would recommend: Yes
Was it helpful to you? Yes | No

Great Optic for Subcompact Pistol

by Alex, Verified Owner from TX, United States Written on December 19, 2025
I switched over from the 407k, very noticeable upgrade in sight picture. I like the ease of keeping the enclosed dot clean as well.
Would recommend: Yes
Was it helpful to you? Yes | No

Great red dot

by Peter, Verified Owner from WA, United States Written on December 16, 2025
The product overall is great. Just wish they would have sent the product with a new set of batteries. The batteries that were included were dead.
Pros:
  • Size
  • Installation
Cons:
  • Dead battery
Best Used for:
  • Glock 19 gen 5
Would recommend: Yes
Was it helpful to you? Yes | No

My first optic!

by Lonnie, Verified Owner from TX, United States Written on December 9, 2025
I decided to buy the Holosun HE509T because it seemed a good way to have an optic that I didn't have to continuously worry about the mechanics inside the framework. The enclosed system seemed a good idea. I do have it mounted and had no trouble finding the red dot when aiming my CZ. Haven't had a chance to actually shoot with it yet, but it should be very soon. I'm thinking I won't have any problems and the optic will work find.
Would recommend: Yes
Was it helpful to you? Yes | No

Good sight

by anonymous-6, Verified Owner from CO, United States Written on October 25, 2025
Not really a holo-sight enthusiast but this thing is really cool. Small, sturdy, and almost never needs the batteries changed thanks to the solar cell.
Would recommend: Yes
Was it helpful to you? Yes | No

One of my many red dots

by John, Verified Owner from FL, United States Written on September 6, 2025
I have several holosun red dots for many years with no issues both on rifles and handguns. This is the first enclosed red dot I have on a pistol, which worked flawlessly first time out (as expected). I have other brands as well and with my corrected astigmatism I have found that holosun is clearer than the others.
Pros:
  • Holds zero and can take abuse
Cons:
  • If using a Glock you need a mounting plate $$
Would recommend: Yes
Was it helpful to you? Yes | No

Very solid sight

by hooked2fly, Verified Owner from KY, United States Written on August 5, 2025
This sight has everything: Shake to awake, dual green reticles, fully enclosed sealed from the elements and a solar panel!
Pros:
  • Hi quality
Cons:
  • None
Best Used for:
  • Target shooting
Would recommend: Yes
Was it helpful to you? Yes | No

Always Awesome

by Alfred Flores, Verified Owner from CA, United States Written on July 11, 2025
First of all, the products, the quality and the customer support of Optics Planet is superlative. The green dot 509t is great for my astigmatism. Total game changer. The rigidity and sturdiness of the 509t is obvious from the look and feel. Now, range time.
Would recommend: Yes
Was it helpful to you? Yes | No

Enclosed emitter greatness.

by Colt river socom4, Verified Owner from MI, United States Written on July 5, 2025
Bought the FDE,version for a 19x, that was milled for a trijicon rmr, not the MOS, the included plate fit perfectly, however the shortest screws were still too long and required some modifications, the screws were easily sanded down using a work sharp knife sharpener which only took a few seconds to get them to the correct size, after which I applied fresh blue loctite and they are solid. The 509t still fits in a safariland holster without issues, and literally took 3 clicks down to be zeroed perfectly. So far after a range day of 550 rounds, there are no issues everything is working like it should, and I'm happy.
Pros:
  • Strength. Looks, shake awake etc
Cons:
  • Price, screws modifications.
Best Used for:
  • Combat, patrol range duty
Would recommend: Yes
Was it helpful to you? Yes | No
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