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Reviews & Ratings for Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight — 16 reviews

(16 reviews)
Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight
Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight
$449.99 $249.49 Save 45%
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Most Helpful Positive Review heavy duty
Overall nice optic, but I ordered by mistake. I needed an RMR footprint. This is Delta point pro footprint But will certainly revisit this product in the near future
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Improvement over Venom & Viper

by Bushdog, Verified Owner from OR, United States Written on January 10, 2026
This is my 3rd Vortex micro Dot sight and the best one so far. It was easy to sight-in and I liked the improved click adjustment. Also love the shake-awake activation option. The Venom I bought a Month earlier appears to be defective and wont adjust. Reminds me of Tommy Boy and the pooh in a box with a warranty = its still pooh. Considering the Defender was on sale and under $175, its worth that but I wouldnt pay any higher for a Vortex. Im probaby done buying their products after several have failed...
Pros:
  • Shake awake
  • Optic size/view
  • Price under $175
Cons:
  • Its a Vortex
Best Used for:
  • shooting
Would recommend: Yes
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Nice optic

by Tim, Verified Owner from TX, United States Written on January 8, 2026
Nice site. Really like the operation of it. Only negatives are the instructions could be a little better. No mention on how to open the battery cap...looks like it should be a larger bit than just the tip of it. I can see this getting stripped easily. Also, it doesn't mention which screws go with mounting for picatinny rail mount. Had to google it to make sure I wasn't going booger up the threads. FYI, it's the M4 x 0.7, 11mm.
Pros:
  • Quality build
Cons:
  • Incomplete instructions
Would recommend: Yes
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Vortex Defender ST

by Ty, Verified Owner from WV, United States Written on January 6, 2026
Haven’t used it yet but it is very neat ce and seems very durable and the green dot is pretty crisp
Would recommend: Yes
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Love it, would recommend it to anyone

by Abaddon, Verified Owner from GA, United States Written on December 2, 2025
I purchased this to use on my Ruger RXM, and it was a great choice!
Would recommend: Yes
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Great optics

by Mike, Verified Owner from CA, United States Written on November 30, 2025
Great optics, will be buying again.. kept 0 at the range.
Would recommend: Yes
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Awesome green dot

by Daniel P, Verified Owner from TX, United States Written on November 22, 2025
This is my first green dot. A lot better than my other red dots. Window size is perfect, super easy assembly. I recommend.
Would recommend: Yes
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Good stuff

by One eyed jack, Verified Owner from CA, United States Written on November 15, 2025
I have dots, the only one I didn't get from optics planet was a fake. Don't get fooled and get the real stuff at a fair price.
Would recommend: Yes
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Easy Install, spot on performance.

by juankt, Verified Owner from ID, United States Written on November 8, 2025
Was very impressed that it came with an array of mounting hardware. Likely covers a majority of platforms. Took less than 5 minjtes to install, and a mere 8 rounds to zero the dot. Love the fov and the visibility of the dot.
Pros:
  • Great field of vision
  • simple installation and operation
  • Mounting hardware covers array of platforms
Cons:
  • None
Would recommend: Yes
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Great sight!

by Beau, Verified Owner from MD, United States Written on October 18, 2025
Perfect sight for my G21 Gen 5! Holds zero well, with a clear sight picture.
Would recommend: Yes
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Great so far!

by GrantleyBuffalo, Verified Owner from WI, United States Written on October 15, 2025
Only a couole hundred rounds through it so far, but functions great and has held zero. Shake awake has been working flawlessly.
Would recommend: Yes
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