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Vortex Green Dot Defender-ST 3 MOA

Main info

Vortex Defender-ST Green Dot 3 MOA: compact, ultra-bright sight with a vivid green dot for fast target acquisition, shock- and water-resistant, motion-activated and top-mount battery swap. Fits RMS or Picatinny. Lifetime VIP warranty.

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The Vortex Defender-ST™ Green Dot 3 MOA is as versatile as the way you shoot. Its compact, ultra-clear window keeps things lightweight while giving you a fast, open view for quick target acquisition. The bright green dot stands out even in full daylight, and with ShockShield™ technology and motion activation, your optic is always ready when you are. Rugged, lightweight, and built for action.

How to Use the Vortex Green Dot Defender-ST 3 MOA

The Defender-ST easily mounts to pistols with an RMS footprint. A Picatinny/Weaver mount is included, letting you install it on a wide range of platforms. Proper installation is key—just place the green dot on the slide or mounting plate, align the screw holes, and choose the right screws from the included hardware kit.

Always check your firearm’s manual to see if you need an additional mounting plate. Installation is simple as long as you follow the steps.

Key Features
  • Aspherical Lens – Delivers a bright, distortion-free view with lightning-fast target acquisition.
  • Motion Activation with Auto Shutoff – Powers up when it senses movement and saves battery life after 10 minutes of inactivity.
  • Top Mount Battery – Swap batteries easily without removing or re-zeroing your optic.
  • ShockShield™ Insert – Absorbs daily bumps and impacts for extra durability.
  • 3 MOA Green Dot – A crisp, daylight-bright dot with 10 brightness levels, including 2 night-vision settings.

The vibrant green dot stands out beautifully in natural, outdoor environments and bright sunlight. Whether you’re training, hunting, or defending, the Defender-ST™ keeps you fast and accurate. With unlimited eye relief and a parallax-free design, aiming feels instinctive—no perfect alignment needed.

The housing is waterproof, dustproof, and finished with a matte, scratch-resistant coating. Everything you expect from a Vortex red dot—only smaller and lighter.

Unlimited Lifetime VIP Warranty

The Vortex VIP Warranty stands for “Very Important Promise.” If your product breaks, we’ll fix it. If it can’t be repaired, you’ll receive a replacement of equal or better condition. It doesn’t cover loss, theft, or deliberate damage—but it does cover your confidence, for life.


  • 1x Picatinny mount
  • 1x Special tool
  • 5x Most commonly used mounting screw sets
  • 1x Lens cloth
  • 1x CR2032 battery
  • 1x Rubber cover
  • 1x Lock MOS plate

Dimensions and weights

Gross weight
0.25 kg
Package width
10 cm
Package height
6.5 cm
Package length
14.5 cm

Product codes

EAN
843829145800

Manufacturer

Manufacturer
Vortex Optics, Vortex Drive 1, Barneveld, 53507, US, info@vortexoptics.com
Responsible person in the EU
Benel BV, Buitenvaart 1127a, Hoogeveen, 7905 SE, NL, info@benel.nl

Photopoint offers free shipping for orders over 99 € delivered to Estonia. Take a look in the tab "Delivery" for a more precise delivery estimate.

For this product you can select the desired delivery method at the shopping cart:

Photopoint store Pick-up


Place your order from Photopoint web store and pick your goods up from one of Photopoint`s brick and mortar stores. The delivery to Photopoint store is free even for orders less than 99 €. You will be noticed by e-mail when your order is ready for pick-up.

The Photopoint stores are located in Tallinn and Tartu. See the exact locations from here.

Omniva parcel terminal 

You can order the goods to one of the Omniva Parcel terminals. Choose the desired terminal at the shopping cart. As the shipment arrives to the selected terminal, you will be sent an SMS-notification with an unique code. Go to the terminal within a week, enter the code and take your package. It is as simple as that.

See Omniva Parcel terminal locations here.

SmartPOST parcel terminal

Did not find an Omniva terminal at suitable location? Try SmartPost. Choose the desired terminal at the shopping cart. As the shipment arrives to the selected terminal, you will be sent an SMS-notification with an unique code. Go to the terminal within a week, enter the code and take your package. This method actually works for all parcel terminals.

See SmartPOST parcel terminal locations here.

DPD parcel locker

Make sure you check out also the locations of DPD parcel lockers. These are located all over Estonia. The delivery is the same. As the shipment arrives to the selected locker, you will be sent an SMS with a unique code. Go to the locker, enter the code and take your package.

See DPD parcel locker locations here.

Smartpost Finland parcel terminal

SmartPOST Finland is the best way to order goods to Finland. These terminals work the same way as in Estonia. As the shipment arrives to the selected terminal in Finland, you will be sent an SMS-notification with an unique code. Go to the terminal, enter the code and take your package.

See SmartPOST Finland parcel terminal locations here.

Matkahuolto parcel service

Matkahuolto is easy way to order goods to Finland. These are located also in smaller Finnish towns. As the shipment arrives to the selected Matkahuolto outlet, you will be sent an SMS-notification or an e-mail. Go to the outlet, show your ID and take your package.

See Matkahuolto outlet locations here.

Omniva courier delivery

The courier will transport your goods from Photopoint straight to the provided address. The delivery will take place at workdays from 08:00 to 17:00. Hold your phone near you as the courier will call you prior to its arrival. Please make sure there is someone at the destination, eligible to receive the shipment. 

The product is out of stock. For additional availability and preorder information please contact us here.

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