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Questions & Answers
will the work on my P365 X MACRO Expert Answer

The Vortex Defender-ST will not fit the X-Macro. You would need the Vortex Defender CCW model, or the Vortex CCW Enclosed.

by Ethan, Gear Expert, November 3, 2026
can you install on an RMR footprint AI Answer

No, the Defender-ST uses a Deltapoint Pro footprint, not an RMR footprint, so it will not directly mount on an RMR-cut slide or plate.

by OpticsPlanet AI, September 27, 2026
Customer Reviews
Helpful Positive Review
Easy Install, spot on performance. by juankt, Verified Owner, 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.
1/1 found this helpful
Helpful Positive Review
Green dot sight by Carl Walton, June 30, 2026
I appreciate the green dot as I have a hard time seeing 3 dot sights. makes hitting the target much easier.
1/1 found this helpful
Helpful Positive Review
carry handle friendly by rice man, Verified Owner, June 13, 2026
Perfect for old school carry handle carbines. Great price and fast shipping.
1/1 found this helpful
Helpful Positive Review
Perfect for my Mini Thirty by PH, Verified Owner, September 23, 2025
This completes my Mini Thirty (with Ultimak rail) perfectly. Easy set up, low profile, excellent sight picture, about a pound less weight than the Burris scout scope or Holosun Red Dot I used before.
1/1 found this helpful
Helpful Positive Review
Awesome green dot by Daniel P, Verified Owner, 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.
1/1 found this helpful
Helpful Positive Review
Great optics by Mike, Verified Owner, November 30, 2025
Great optics, will be buying again.. kept 0 at the range.
1/1 found this helpful
Read All 38 Reviews
This item is currently on sale and has a new, lower price!
Color:
Black
Reticle:
3 MOA
Illumination Color:
Green
Red Dot Sights-Footprint:
Deltapoint Pro
Condition:
New

Code: VX-RD-RYFFG-DFST-MGD3

MPN: DFST-MGD3

UPC: 843829145800

On Sale
List: $449.99Save 42%
$259.49

Product Info for Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight

The Do-It-All Micro Red Dot. Handguns. Shotguns. Offset on a carbine. Whether running drills at the range or holding the line during rigorous duty use, the Defender-ST is ready when and wherever you are. Rugged and reliable? Its a given. Large sight window? Absolutely. Motion-activation and a dot with adjustable brightness deliver superior target acquisition, adaptability in all lighting conditions, and faster follow-up shots. Experience what shooters mean when they discuss the ideal, all-round red dot. With the Defender-ST, you're not just range-ready, but armored for the toughness and adaptability your world demands.image

Specifications for Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight:

Manufacturer: Vortex
Color: Black
Magnification: 1 x
Objective Lens Diameter: 23 mm
Reticle: 3 MOA
Illumination Color: Green
Eye Relief: Unlimited
Adjustment Click Value: 1 MOA
Battery Type: Lithium Metal, CR2032
Weight: 1.48 oz
Red Dot Sights-Footprint: Deltapoint Pro
Condition: New

Features of Vortex Defender-ST 1x Reflex Micro Green Dot Sight

  • Bright Green Dot
  • Large Viewing Window
  • ShockShield Polymer Insert
  • Fast-Rack Texturing
  • Motion Activation With 10 minute Auto-Shutoff
  • Button Lockout
  • Top Mount Battery
  • 10 Daylight Bright Brightness Settings
  • Night-Vision Compatibility
  • Parallax Free
  • Unlimited Eye Relief
  • Low-Glare Matte Black Anodized
  • Single-Piece Chassis
  • Waterproof
  • Fogproof
  • Shockproof

Package Contents:

  • Vortex Defender-ST 1x Reflex Micro Green Dot Sight
  • Picatinny Mount
  • Custom Tool
  • Most Common Mounting Screw Sets
  • Lens Cloth
  • CR2032 Battery
  • Rubber Cover
  • Glock MOS Plate

Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight Orderable Models

List of Orderable Models

  • Vortex Defender-ST 1x 23mm Reflex Micro Green Dot Sight, 3 MOA, Black, DFST-MGD3 , MPN: DFST-MGD3 , UPC: 843829145800 , Code: VX-RD-RYFFG-DFST-MGD3

Vortex Defender-ST 1x23mm Reflex Micro Green Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Vortex Defender-ST 1x 23mm Reflex Micro Green Dot Sight, 3 MOA, Black, DFST-MGD3 , MPN: DFST-MGD3-DEMO , Code: VX-RD-RYFFG-DFST-MGD3-DEMO-OB-A
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Last updated 2026-11-06 UTC.