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Vortex Defender-ST Enclosed Solar Micro Red Dot
Vortex Defender-ST Enclosed Solar Micro Red Dot

Vortex Defender-ST Enclosed Solar Micro Red Dot

Your Price: £300.00
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Part Number:DFST-MRD3-E
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Vortex Defender-ST Enclosed Solar Micro Red Dot – Multi Reticle

Full-Size Performance. Enclosed Protection. Built for Demanding Use.

The Vortex Defender-ST Enclosed Solar Micro Red Dot is designed for shooters who need a tougher, more versatile optic without sacrificing speed or clarity. Built with a fully enclosed emitter system, it protects the reticle from environmental interference while delivering a fast, consistent aiming solution across multiple platforms.

With its larger window and adaptable reticle system, the Defender-ST is well suited to pistols, carbines, and shotguns—offering flexibility for both range use and more demanding applications.


Multi-Reticle System for Maximum Flexibility

The Defender-ST allows you to switch between reticle styles depending on your shooting needs.

  • 3 MOA dot for precision aiming
  • 32 MOA circle for rapid acquisition
  • Circle + dot combination for balanced performance

This adaptability means you can tailor your sight picture without changing optics.


Solar-Assisted Power for Extended Runtime

The Defender-ST uses a hybrid power system to keep your optic running longer with less maintenance.

  • Solar Auto D-TEC technology uses ambient light when available
  • CR2032 battery backup for low-light conditions
  • Up to 150,000 hours runtime with solar assist

This ensures reliable performance whether you're in bright daylight or low-light environments.


closed Design for All-Condition Reliability

The sealed housing keeps the emitter protected, preventing common issues found with open emitter optics.

  • Fully enclosed design blocks rain, dust, and debris
  • Maintains a clear reticle in harsh conditions
  • More reliable in outdoor and adverse environments

This makes it a dependable choice for real-world use.


Large Viewing Window & Clear Optics

The Defender-ST features a larger viewing window than compact carry optics, improving usability and target tracking.

  • Wide window for faster target acquisition
  • Aspherical lens for a clean, distortion-free image
  • Clear sight picture across lighting conditions

This helps you stay on target even during fast transitions.


Built for Speed & Practical Handling

Designed with real-world use in mind, the Defender-ST includes features that enhance usability and control.

  • Motion activation powers the optic on instantly
  • 10-minute auto shut-off preserves battery life
  • Button lockout prevents accidental setting changes

These features ensure the optic is always ready when needed.


Durable Construction for Hard Use

Built from high-strength materials, the Defender-ST is designed to withstand repeated use and impact.

  • 7075 aluminium housing for durability
  • Shock-resistant design for consistent performance
  • Waterproof and fogproof construction

It’s built to maintain zero and function reliably under pressure.


Flexible Mounting Compatibility

  • Uses DeltaPoint Pro footprint for wide compatibility
  • Suitable for pistols, carbines, and shotguns
  • Includes multiple mounting options and hardware

What’s Included

  • Defender-ST Enclosed Solar Micro Red Dot
  • CR2032 battery
  • Mounting hardware
  • Picatinny mount / adapter plates
  • Adjustment tool
  • Protective cover
  • Lens cloth

Key Specifications

  • Magnification: 1x
  • Reticle: Multi-Reticle (Dot / Circle / Combo)
  • Dot Size: 3 MOA + 32 MOA circle
  • Battery: CR2032
  • Battery Life: Up to 150,000 hours (solar assisted)
  • Adjustment: 1 MOA increments
  • Max Adjustment: 115 MOA elevation / 145 MOA windage
  • Length: Approx. 1.8"
  • Weight: Approx. 1.6 oz

Why Choose the Defender-ST?

The Defender-ST is designed for shooters who want a larger, more versatile enclosed red dot without sacrificing durability or battery life. It delivers a combination of clear optics, adaptable reticles, and long-lasting power, making it suitable for a wide range of shooting applications.

If you’re looking for a robust, all-purpose red dot that performs in demanding conditions, the Defender-ST stands out as a reliable choice.


Frequently Asked Questions

What is the difference between the Defender-ST and CCW?

The Defender-ST has a larger window and footprint, making it better suited to full-size setups, while the CCW is more compact for concealed carry.

What is a multi-reticle system?

It allows you to switch between different reticle styles, such as a dot, circle, or both combined.

How does solar power help?

Solar assist extends battery life by using available light, reducing how often the battery needs replacing.

Is an enclosed red dot more reliable?

Yes, the sealed design protects the emitter from debris and moisture, ensuring consistent performance.

Can this optic be used on rifles as well?

Yes, with the correct mount, it can be used on carbines and other platforms.

View the Range

Vortex Defender-XL™ Range

Vortex Defender-XL™ 8 MOA Red Dot Sight

Vortex Defender-XL™ 5 MOA Red Dot Sight

Vortex Defender-XL™ Micro Red Dot 2 MOA

Vortex Defender-XL™ Micro Green Dot 3 MOA

 

Vortex Defender-ST™ Range

Vortex Defender-ST™ 6 MOA Red Dot Sight

Vortex Defender-ST™ 3 MOA Red Dot Sight

Vortex Defender-ST™ Micro Green Dot 3 MOA

 

Vortex Defender-CCW™ Range

Vortex Defender-CCW™ 6 MOA Red Dot

Vortex Defender-CCW™ 3 MOA Red Dot

Vortex Defender-CCW™ Enclosed Solar Micro Red Dot

Vortex Defender-CCW™ Micro Green Dot 3 MOA

Vortex Defender-CCW™ Micro Red Dot 3 MOA - Tan


Vortex Defender Red Dot Guide

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