Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight
$529.99 $319.49 Save 40%
View Product
Compare (0)
Most Helpful Positive Review Vortex Enclosed Defender dots are amazing
I bought both a Defender ST and the Defender CCW. I've owned Holosun, Gideon, Trijicon, and Meprolights enclosed pistol dots and I like these Defender enclosed dots the best. The glass has minimal distortion, the red dot doesn't flare out and gets extremely bright for those very sunny days, the shak...
Read More...
Most Helpful Negative Review Did have one issue…
This Vortex is really nice and includes EVERYTHING you need right in the box. I was impressed at how many different mounting screws you get. The only issue I had was after I mounted this to my Bul Armory EDC and after making sure it was zeroed I took it to the range put 2-3 mags through it and the r...
Read More...
Show
Sort by
Filter by

Vortex defender

by DD, Verified Owner from NJ, United States Written on June 16, 2026
Great product perfect size for an enclosed emitter. Fast processing quick shipping. Love optics planet.
Would recommend: Yes
Was it helpful to you? Yes | No

Installed easy on RXM

by Sam, Verified Owner from TX, United States Written on June 16, 2026
Fits great. Like the button shielding. Not too big. Generous window size. Easy change battery. Hope it holds up. Quick shipping.
Would recommend: Yes
Was it helpful to you? Yes | No

Vortex Defender ST Enclosed

by Jbowerstx, Verified Owner from TX, United States Written on June 14, 2026
Mounting was easy and works as advertised. Comes with everything you need. Red dot circle looks awesome.
Would recommend: Yes
Was it helpful to you? Yes | No

excellent red dot

by Bobby, Verified Owner from NM, United States Written on June 12, 2026
In my opinion this is a perfect red dot for a tactical shotgun. It lives on my 1301 and works flawlessly.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Optic review

by ANTONIO CEBALLOS, Verified Owner from TX, United States Written on May 29, 2026
Very pleased with the optic, and fast shipping. The optic was easy to mount and came with all the correct mounting plates and tool!
Would recommend: Yes
Was it helpful to you? Yes | No

Vortex Enclosed Red Dot

by Matt Armstrong, Verified Owner from OR, United States Written on May 27, 2026
Best red dot I own! Works great and looks great. Vortex has rhe best cold timer service in the business.
Pros:
  • Everything
Cons:
  • price
Best Used for:
  • pistols
Would recommend: Yes
Was it helpful to you? Yes | No

Reticle distortion is a reality due to design flaw

by Chaz, Verified Owner from MI, United States Written on May 27, 2026
All of the negative comments you read on the Internet about the circle and circle dot reticles warping or distorting are true. The only spot in the glass that it doesn't distort is at the bottom of the center part of the glass - basically if you try to co-witness with iron sights, that is the ideal location to use the reticle. At any other place in the window, it will distort. I called Vortex and their customer service rep grabbed one off their inventory/shelf and observed the same distortion. It's not just at the extreme edges but all over the window. If you keep the reticle in the center of the glass it will be distorted. In the regular 3 MOA dot mode, the distortion is not noticeable but if you move your head around you can observe the dot following the curvature of the aspherical glass. I believe the issue is with how they placed the curve of the glass and the fact the emitter is aimed at the bottom center of the glass (where it appears the least distorted). Vortex said their optics department is aware of the complaints but as of now there are no plans to fix this issue and it is what it is.

I have plenty of Vortex products but I'd recommend either using it in the regular dot mode, or doing a hard pass on the Defender ST Enclosed until they figure it out.
Pros:
  • Enclosed, tall window, includes every accessory needed (Including a DPP Glock MOS adapter plate)
Cons:
  • Emitter position and aspherical glass makes the circle/circle dot unusable
Best Used for:
  • plinking
Would recommend: No
Was it helpful to you? Yes | No

Buy buy buy

by gman, Verified Owner from IL, United States Written on May 23, 2026
Great optic, big window and vortex is reputable company.
Would recommend: Yes
Was it helpful to you? Yes | No

Vortex Defender St

by Deadeye Deer Dropper, Verified Owner from MO, United States Written on May 21, 2026
Well as some have said, this RedDot comes with everything needed to attach to picatinny rail. Mounted it on IWI Tavor 7 with just a little too powerful of a magnifier behind it, 6 power. I will be moving back into a 3 power. Took it to the range to run some ammo through the gun and to start the process of getting on paper without bore sighting. Should have bore sighted first. It was sighted as good as I was going to get it at hundred yards. It took 15 rounds to sight in, but in its defense it was all-so a brand new gun. The process was seamless to adjust right into the center of the red on the target. Plan on going back to season the barrel in the future. Shot a total of 39 rounds 24 after dead center and it held true to the end.
Would recommend: Yes
Was it helpful to you? Yes | No

worth the money!

by Thomas Hogue, from WA, United States Written on May 18, 2026
I was going between this dot and the Holosun EPS. I’ve shot with the EPS on my friend’s gun. I decided to try this one as it’s almost $100 cheaper. I’m beyond impressed with the Defender ST!! The glass being taller than the EPS was very nice for me. Was crystal clear to look through. Now I want to transition all of my pistols to this red dot. Well worth the money!!
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?
Last updated 2025-11-12 UTC.