Vortex Green Dot Defender-ST 3 MOA

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.