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Reviews & Ratings for Holosun HS507K X2 Compact Pistol 2x 0.58 x 0.77 in Reflex Red Dot Sight — 88 reviews

(88 reviews)
Holosun HS507K X2 Compact Pistol 2x 0.58 x 0.77 in Reflex Red Dot Sight
Holosun HS507K X2 Compact Pistol 2x 0.58 x 0.77 in Reflex Red Dot Sight
As Low As $295.99 Save Up to 15%
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Most Helpful Positive Review HS507k x2 ACSS = rambo mode
Ok, it won't make you Rambo - but it has improved my draw to first shot and my 15yards+ shot accuracy significantly. It was waaay off zero after I mounted the optic, but was extremely easy to set on the right path. I put the 507k on my new Canik MC9, direct mount to the slide and no plates needed. L...
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Most Helpful Negative Review battery life sucks
I don't see any reviews like this, so maybe I got a lemon, but my battery only lasts about two months. It'll start to blink about every minute for a day, and then it dies completely. I dont know what's up with it, but it's not cool.
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HS507K X2 Compact Pistol Red Dot Sight

by Ronald Yeakel, Verified Owner from MA, United States Written on May 29, 2026
Very nice optic. Fits and works well on my HK's (CC9 and VP9CC).
Would recommend: Yes
Was it helpful to you? Yes | No
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No screws included for 43x FDE

by Annoyed customer, Verified Owner from MI, United States Written on May 26, 2026
If you are buying this for Coyte 43x with K optics mount- this does not come with the screws needed. A bit ridiculous for a $300 optic. So now I have to wait a few more days and spend more money to buy the correct screws. Other than that I can’t give it anymore feedback because I can’t use it.
Pros:
  • Couldnt tell you
Cons:
  • Not compatible with Glock 43x Coyote
Would recommend: No
Was it helpful to you? Yes | No
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Holosun 607k

by Kyle, Verified Owner from NJ, United States Written on May 24, 2026
Fast shipping l.. here faster than expected...love th sight beautiful n small jus perfect for a carry
Pros:
  • Best shipping was here faster than expected..
Cons:
  • Need an adapter plate... had #3 plate from glock but nipples to high.
Best Used for:
  • Shoooting..funn..carry wepon of choice
Would recommend: Yes
Was it helpful to you? Yes | No
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Quality Red Dot!

by Mongo, Verified Owner from VA, United States Written on May 13, 2026
The HS507K X2 super easy to install on my Sig P365XL - took about 10 mins from start to finish. It has a solid build feel and I love the circle & dot combo. Super bright on highest setting although I lean towards the middle position most times.
Pros:
  • Price
  • Ease of use
  • solid construction
  • easy installation
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Great Product

by KK, Verified Owner from FL, United States Written on May 2, 2026
I have never used a red dot before. This is my first one. Easy to use with a nice bright dot. Using it on my competition pistol
Would recommend: Yes
Was it helpful to you? Yes | No
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Neat small RD.

by Flipdog1, Verified Owner from TN, United States Written on April 10, 2026
Looks like it was made specifically for this pistol.
Would recommend: Yes
Was it helpful to you? Yes | No
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507K Purchase

by Jake, Verified Owner from CA, United States Written on April 7, 2026
I bought this for my S&W CSX-E and its great! Its definitely worth the money.
Would recommend: Yes
Was it helpful to you? Yes | No
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great for ccw

by Matthew Welch, Verified Owner from MS, United States Written on March 1, 2026
Mounted on a Glock 43X with a C&H adapter. Great dot, clear reticle, and holds a zero. I use this weapon system very often and the durability is impressive.
Pros:
  • Quality
  • Easy adjustments
Cons:
  • None
Best Used for:
  • CCW
Would recommend: Yes
Was it helpful to you? Yes | No
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Holosun HS507K X2

by PotShot, Verified Owner from NC, United States Written on November 25, 2025
I purchased this as a gift for my daughter. It hasn’t been mounted yet (Christmas gift). The sight arrived perfectly packaged and was received in the shortest time of anything I’ve ordered from OpticsPlanet. Upon arrival I removed it from the packaging and as expected it was flawless. Fit, function and finish are all excellent. I read many reviews before settling on the Holosun and have every confidence that it will perform well. It’s going on a Ruger Max9. I will update this review once it is put into actual use. Side note…..I have made a number of purchases from OpticsPlanet and have never been disappointed in their offerings or service. Pricing has always been competitive and while I’ve never had an issue that warranted contacting them for rectification, I have no doubt that any concerns would be handled swiftly and professionally. I sincerely thank OpticsPlanet for all they do!!
Would recommend: Yes
Was it helpful to you? Yes | No
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Compact and effective red dot for Sig X-macro

by Orv W, Verified Owner from TX, United States Written on November 4, 2025
Installation of my Sig X-macro was straightforward and easy. I was able to use existing iron sights as BUIS, a real savings not having to purchase new ones!

Once zeroed, I've had no issues with the 507K retaining zero after about 400 rounds. Still working to figure out which I like better, the automatic or manual brightness adjustment. As a lefty, the brightness adjustment is a bit awkward to use.
Pros:
  • compact
  • Holds zero
  • Didn't need new BUIS
Cons:
  • Brightness adjustment for lefty
Best Used for:
  • EDC
Would recommend: Yes
Was it helpful to you? Yes | No
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