Vortex Defender ST FDE 3 MOA Red Dot, DPP Footprint, DFST-MRD3-T

The Defender-ST™ in Matte Tan Anodized finish is the all-purpose red dot built for duty, defense, and demanding range days. 

With a DeltaPoint Pro footprint, the Defender-ST expands compatibility across popular platforms, giving you flexibility in setup without sacrificing reliability. Its large sight window and aspherical lens provide a distortion-free view, while the daylight-bright 3 MOA red dot makes target acquisition fast and precise in any lighting condition.

Why the Defender-ST™ Stands Out

• Versatile Mounting – Perfect for pistols, shotguns, or as an offset red dot on a carbine.
• Built for Abuse – ShockShield™ polymer insert and rugged single-piece chassis shrug off daily impacts, recoil, and duty use.
• Always Ready – Motion activation with 10-minute auto shutoff ensures the sight is ready when you are while preserving an impressive 25,000-hour battery life.
• User-Friendly Design – Top-loading CR2032 battery, button lockout, and Fast-Rack™ textured front face for racking off any surface.
• Mission-Ready Finish – Matte TAN anodization reduces glare, resists corrosion, and blends seamlessly into duty or concealment environments.

Features at a Glance

• 3 MOA daylight-bright red dot with 10 brightness settings (8 daylight + 2 night vision).
• Large viewing window with aspherical lens for a truer, distortion-free sight picture.
• Fast-Rack™ textured grip for confident slide manipulation.
• Parallax-free, unlimited eye relief for rapid target engagement.
• Waterproof, fogproof, shockproof construction for maximum durability.
• Lightweight single-piece chassis – just 1.48 oz at 1.83" length.

Specifications

• Footprint: DeltaPoint® Pro
• Dot Size: 3 MOA Bright Red
• Battery: CR2032 (Top Load)
• Runtime: Up to 25,000 hours
• Adjustment Range: 115 MOA Elevation / 145 MOA Windage
• Weight: 1.48 oz
• Length: 1.83"

What’s in the Box

• Defender-ST™ Red Dot (TAN)
• Picatinny Mount
• Glock MOS Plate
• Custom Tool
• Common Mounting Screw Sets
• Rubber Cover
• Lens Cloth
• CR2032 Battery