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Questions & Answers
What is difference between vortex defender-st enclosed solar and defender-cww enclosed solar?

The Defender-ST Enclosed also has a larger window than the Defender-CCW Enclosed

by T Lyons, Verified Owner, October 19, 2025
Will this fit a Gen6 G19 MOS?? Expert Answer

The Vortex Defender-ST Enclosed is compatible with your Gen 6 Glock 19. Using the Deltapoint Pro adapter plate included with your Glock, you will be able to install it to your slide.

by Ethan, Gear Expert, June 10, 2026
Customer Reviews
Helpful Positive Review
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 ex...
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15/15 found this helpful
Helpful Positive Review
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. ...
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1/1 found this helpful
Helpful Positive Review
Amazing Red Dot Highly Recommend! by Chris G, Verified Owner, February 1, 2026
I simply cant like this Vortex Defender ST Enclosed Solar Micro red dot enough. They hit this one out of the park. I own many other Vortex products, some great, some meh.. This one is my favorite. For $250-300 you're not getting anything remotely clo...
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1/1 found this helpful
Helpful Positive Review
Excellent EDC optic by Hunter, Verified Owner, January 29, 2026
Threw this optic on my Echelon for an enclosed EDC optic and was not disappointed with how well it did shooting. Easy to operate the buttons and the raised optic face allows racking on a belt or table without possibly damaging the glass. Only thing I...
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2/2 found this helpful
Helpful Positive Review
1200 rounds in one day by Ty Ty, Verified Owner, October 24, 2025
Got this for my GTO and put 1200 rounds on it in like 2 hours. Dot was excilent the whole time. Threw the gun around/racked it off my boot/holster a LOT. Never lost Zero. Will be getting one to mount to other pistols and rifle.
4/4 found this helpful
Helpful Positive Review
Vortex did it again! by Dana, Verified Owner, December 28, 2025
This is the second Defender -ST I've purchased through OP. Vortex has done an excellent job engineering this red dot. It has held zero after 1000's of rounds, and it looks good and is affordable.
2/2 found this helpful
Read All 60 Reviews
Color:
Black
Reticle:
3 MOA Red Dot 32 MOA Circle
Illumination Color:
Red
Condition:
New
Red Dot Sights-Footprint:
Deltapoint Pro

Code: VX-RD-IKJ9HG-DFST-MRD3-E

MPN: DFST-MRD3-E

UPC: 843829142854

List: $529.99Save 40%
$319.49

Product Info for Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight

Tough, adaptable, ready for anything the Defender-ST Enclosed Solar Micro Red Dot gives you a no-quit edge on pistols, shotguns, and carbines. Its ultra-rugged, fully enclosed design protects the emitter against impact and the elements, keeping you on target in any condition. Battery and solar power keep it running as long as you do, while multi-reticle customization let you quickly adjust and lock on targets in any light day or night across any platform.image

Specifications for Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight:

Manufacturer: Vortex
Color: Black
Finish: Matte Black Anodized
Fabric/Material: 7075-T6 Aluminum
Magnification: 1 x
Objective Lens Diameter: 22.5 mm
Reticle: 3 MOA Red Dot 32 MOA Circle
Illumination Type: LED
Illumination Color: Red
Brightness Settings: 10
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Enclosed
Parallax: Parallax Free
Optical Coating: Fully Multi-Coated
Battery Type: CR2032
Weather Resistance: Yes
Water Resistance Level: Water Resistant
Shockproof: Yes
Fogproof: Yes
Length: 1.83 in
Weight: 1.48 oz
Condition: New
Red Dot Sights-Footprint: Deltapoint Pro

Features of Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight:

  • Enclosed Aluminum Housing
  • Multi-Reticle
  • Solar w/ Auto D-Tec Technology
  • Large Viewing Window
  • Deltapoint Pro Footprint
  • Aspherical Lens
  • Motion Activation w/ 10 Minute Auto-Shutoff
  • Button Lockout
  • Side Load Battery

Package Contents:

  • Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight
  • Picatinny Mount
  • Custom Tool
  • Rubber Cover
  • Most Common Mounting Screw Sets
  • CR2032 Battery
  • Lens Cloth
  • Glock MOS Plate
  • Extended Torx T-10 Bit

Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • Vortex Defender-ST Enclosed Solar Micro Reflex Red Dot Sight, 1x22.5mm, 3 MOA dot with 32 MOA circle Reticle, Black, DFST-MRD3-E , MPN: DFST-MRD3-E , UPC: 843829142854 , Code: VX-RD-IKJ9HG-DFST-MRD3-E

Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Vortex Defender-ST Enclosed Solar Micro Reflex Red Dot Sight, 1x22.5mm, 3 MOA dot with 32 MOA circle Reticle, Black, DFST-MRD3-E , MPN: DFST-MRD3-E-DEMO , Code: VX-RD-IKJ9HG-DFST-MRD3-E-DEMO-OB-A
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