Vortex|SKU: DFST-MRD3-T

Vortex Defender-ST 3 MOA Micro Red Dot (Tan)

$299.00 $449.99

Hurry! Order now to get it before December 25th.

Product highlights

  • 3 MOA red dot
  • Motion-activated power with 10-minute auto shutoff
  • ShockShield polymer impact insert
  • Fast-Rack texturing for slide manipulation
  • Large viewing window
  • Aspherical lens
  • Top-mount battery access
  • Button lockout
  • 10 brightness settings
  • Night-vision compatibility (2 lowest settings)
  • Parallax-free
  • Unlimited eye relief
  • Low-glare matte black anodized finish
  • Single-piece chassis
  • Waterproof
  • Fogproof
  • Shockproof

In the box

  • Vortex Defender-ST 3 MOA Micro Red Dot (Tan)
  • Picatinny Mount
  • Custom Tool
  • Rubber Cover
  • Most Common Mounting Screw Sets
  • CR2032 Battery
  • Lens Cloth
  • Glock MOS Plate

Free standard shipping

*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

Free Local Pickup

Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Questions? We’re Here to Help

Call or email one of our experts.

Vortex Defender-ST 3 MOA Micro Red Dot with Motion Activated (Tan)

Handguns. Shotguns. Offset on a carbine. Whether running drills at the range or holding the line during rigorous duty use, the all-purpose Defender-ST delivers the toughness, accuracy, and adaptability your challenging world needs.

3 MOA Illuminated Red Dot

Ideal for fast target acquisition and precision accuracy at short to medium ranges.

Large Viewing Window

Provides a wide field of view and rapid sight alignment, enhancing target tracking and situational awareness.

Aspherical Lens

Offers a distortion-free sight picture with more accurate color fidelity for better visual clarity.

ShockShield Polymer Insert

Built-in shock-absorbing insert protects the optic from hard impacts and daily abuse.

Fast-Rack Texturing

Aggressively textured front allows for emergency slide racking against hard surfaces.

Motion Activation with Auto Shutoff

Automatically powers on when movement is detected and powers off after 10 minutes of inactivity to save battery life.

Button Lockout Mode

Prevents accidental brightness changes during use or transport, ensuring consistent performance.

Top-Mount Battery Compartment

Allows battery replacement without removing or re-zeroing the optic, improving uptime and convenience.

10 Brightness Settings

Includes daylight-visible settings for bright conditions and two night-vision-compatible modes for tactical use.

Parallax-Free Design

Delivers reliable aim without needing perfect alignment, aiding in faster target acquisition.

Unlimited Eye Relief

Flexible eye position improves speed and comfort in dynamic shooting scenarios.

Durable Single-Piece Chassis

Compact, lightweight housing enhances ruggedness while maintaining a low profile on the firearm.

Waterproof, Fogproof, Shockproof Construction

Sealed and tested for durability in extreme environments and under heavy recoil.

Low-Glare Matte Anodized Finish

Corrosion-resistant and helps reduce visual detection in tactical situations.

Shipping & Returns

  • Same Day Shipping


    All orders placed by 1PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

  • Free Standard Shipping


    We offer free standard shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).



  • Easy returns


    If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.


Frequently Asked Questions

How do I return an item?

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.

Will I receive a full refund when I return an item?

You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.

How many days do I have to make a return?

You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 

My item was damaged in transit. How do I place a return?

If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 

There’s an issue with my order, what should I do?

Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.

Can I exchange an item?

We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.

If I ordered a kit, do I have to return all the items?

If you ordered a kit, you must return all components and accessories to receive a full refund.

I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?

If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.

Do you offer repairs?

We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.

What is your return policy?

Most items can be returned within 30 days for a full refund. Click here to read our full return policy.