The Vortex Defender-ST™ 3 MOA Green Dot Sight is purpose-built for shooters who demand toughness, accuracy, and adaptability. Whether it’s mounted on a handgun, shotgun, or offset on a carbine, the Defender-ST is engineered to keep you fast, accurate, and confident in any environment.

Featuring a bright green 3 MOA dot with 12 brightness settings (10 daylight + 2 night vision), this optic ensures rapid target acquisition in all lighting conditions. The large viewing window offers a wide field of view, while the ShockShield™ polymer insert protects against daily abuse.

With features like the Fast-Rack™ textured front face for emergency slide racking, motion activation with auto shutoff to extend battery life, and a top-loading CR2032 battery compartment for tool-free swaps without losing zero, the Defender-ST is built for both range days and duty use.

Durable and mission-ready, this sight is waterproof, fogproof, and shockproof, with a single-piece chassis and low-glare matte anodized finish. Whether training, hunting, or defending, the Defender-ST delivers when it matters most.

Features

• 3 MOA bright green dot with 12 brightness settings (10 daylight, 2 night-vision)

• Large viewing window for rapid target acquisition

• ShockShield™ polymer insert for impact protection

• Fast-Rack™ textured grip for racking slides off any surface

• Motion activation with 10-minute auto-shutoff for extended 25,000 hr battery life

• Button lockout prevents accidental brightness changes

• Top-mount battery access – no rezeroing required

• Fully multi-coated lenses for clarity and light transmission

• Waterproof, fogproof, and shockproof performance

• DeltaPoint® Pro footprint for versatile mounting

Specifications

Included in the Box

• Picatinny Mount

• Glock MOS Plate

• Custom Tool

• Rubber Cover

• Most Common Mounting Screw Sets

• CR2032 Battery

• Lens Cloth