From handguns to hunting rifles and everything in between, the Vortex Defender-ST red dot fits seamlessly into all your shooting adventures. Whether it’s part of your everyday gear or ready on your hunting rifle while stalking through the woods, the ultra-clear window of the Defender-ST™ strikes the perfect balance. Small enough for easy mobility, yet wide enough to quickly spot the dot on moving targets. Equipped with ShockShield™ technology and motion activation, you’re always ready for action. Plus, thanks to the automatic shut-off after 10 minutes, you’ll save battery life too.

Key Features of the Vortex Defender-ST Red Dot

• Large aspheric lens with hard coating; delivers quick, distortion-free sight picture.
• Motion activation with Auto-Shutoff; powers on with movement and extends battery life by turning off automatically after 10 minutes.
• ShockShield™ polymer insert; absorbs everyday recoil shocks.
• Top Mount Battery; allows easy battery replacement without resetting the optic.
• Brightness Levels; easily adjust with 10 brightness settings.

With an impressive battery life of up to 25,000 hours, you never have to worry about running out of power at a crucial moment. You can easily mount the Defender-ST 3 MOA using the included adapter on any pistol compatible with an RMS footprint. The set also includes a picatinny/weaver mount for versatile use.

Proper mounting of the Defender-ST™ red dot is crucial for optimal performance. Although straightforward, following the correct steps is essential. It uses the same screw spacing and footprint as the RMS, fitting any pistol with an RMS footprint. You might need to consult your pistol’s manual for additional plates during mounting. If needed, install the plate according to the manufacturer’s recommendations.

For installation, place the red dot on the pistol’s slide or plate, aligning screw holes and recoil lugs. Make sure the red dot sits firmly on the mount and use the correct screw size found in the Defender-ST™ box.

With 10 brightness settings (eight for daylight and two for night vision), the Defender-ST™ offers versatility regardless of lighting or background. The 3 MOA version delivers detailed precision, while the 6 MOA variant is available as an optional accessory.

Unlimited Lifetime VIP Warranty

This special promise to our customers means we repair your Vortex® product if it has defects. If repair isn’t possible, we’ll replace it at no extra cost with an equal or better product. This warranty does not cover loss, theft, intentional damage, or cosmetic damage that does not affect functionality.

Delivery includes:

• 1x Defender-ST 3 MOA Red Dot
• 1x Glock MOS Adapter Plate
• 1x Picatinny Mount
• 1x Rubber Cover
• 1x Custom Tool
• Most common mounting screws
• 1x CR 2032 Battery
• 1x Lens Cloth
• 1x Manual (English)