Vortex Optics Defender-ST Enclosed Solar Micro Red Dot – Built to Perform in Any Condition
https://www.sports-and-gadgets.com/collections/newest-arrivals/products/vortex-optics-defender-st-enclosed-solar-3-moa-dot-32-moa-circle-micro-red-dot-dfst-mrd3-e?variant=47182190739671
Tough. Adaptable. Relentless.
When it comes to performance optics, the Vortex Optics Defender-ST Enclosed Solar Micro Red Dot (DFST-MRD3-E) is engineered to deliver an edge you can depend on—no matter the environment. Built for shooters who demand reliability and speed, the Defender-ST combines rugged construction, intelligent power management, and superior optical clarity in one compact powerhouse.
Built for the Harshest Conditions
The Defender-ST features a 7075 aluminum enclosed housing that’s tough enough to handle recoil, debris, moisture, and rough field conditions. Its fully enclosed design ensures the emitter stays protected from the elements, giving you a consistent, dependable point of aim when it matters most.
Dual Power: Solar + Battery
Never worry about your optic running out of juice. The Defender-ST features SOLAR with Auto D-TEC™ Technology, which automatically switches between solar and battery power depending on ambient light. Powered by a CR2032 battery, you’ll get up to 35,000 hours on battery alone—and up to 150,000 hours with solar assist.
Fast, Flexible, and Clear
With a multi-reticle system offering a 3 MOA Dot or 32 MOA Circle, the Defender-ST adapts to your shooting style and lighting conditions—whether you're training at the range or operating in low-light environments.
The aspherical lens delivers a distortion-free sight picture with true-to-life color, while the large viewing window provides a wider field of view for quick, confident target acquisition.
Smart Design for Real-World Use
Vortex didn’t stop at clarity and durability—the Defender-ST is packed with features to make your shooting experience smoother:
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Fast-Rack Textured Grip: Aggressive front texture for slide racking off any surface.
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Motion Activation + Auto-Shutoff: Turns on with motion, powers down after 10 minutes to save battery.
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Button Lockout: Prevents accidental brightness changes during carry or use.
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Side-Load Battery: Swap batteries without losing zero.
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Waterproof, Fogproof, Shockproof: Built to handle rain, cold, and recoil without missing a beat.
Technical Specifications
| Feature | Specification |
|---|---|
| Mounting Footprint | DeltaPoint Pro |
| Dot Size | 3 MOA Dot / 32 MOA Circle |
| Dot Color | Bright Red |
| Battery Type | CR2032 |
| Battery Run Time | 35,000 hrs (battery) / 150,000 hrs (solar) |
| Magnification | 1x |
| Reticle | Multi-Reticle Enclosed |
| Eye Relief | Unlimited |
| Adjustment Graduation | 1 MOA |
| Travel Per Rotation | 30 MOA |
| Max Elevation Adjustment | 115 MOA |
| Max Windage Adjustment | 145 MOA |
| Parallax Setting | Parallax Free |
| Length | 1.82" |
| Weight | 1.62 oz. |
Why Choose the Vortex Defender-ST?
If you’re looking for an optic that combines durability, adaptability, and long-lasting power, the Vortex Optics Defender-ST Enclosed Solar Micro Red Dot stands out as a top-tier choice. Whether mounted on a pistol, carbine, or shotgun, it keeps you locked on target—day or night, rain or shine.
Get the Vortex Optics Defender-ST today and experience the next evolution of red dot technology.
👉 Available now on our store.
✅We are an authorized Vortex dealer in the US, buy with confidence.
🚘Curbside pickup is available at 780 Dedham St, Unit 500, Canton, MA, 02021
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