Vortex Defender-ST 3 MOA Tan collimator (DFST-MRD3-T)

The Vortex Defender-ST 3 MOA Tan is a development version of the renowned Vortex Defender series, this time tailored for service pistols. It features a larger, more robust design while maintaining exceptional ruggedness, making it ideal for tactical use. The lens has been proportionally increased in size to offer a wider field of view and greater zero adjustment range. With a classic 3 MOA dot, it is well-suited for tactical and dynamic shooting, while the 6 MOA version is recommended for service pistols or personal protection firearms. Thanks to the included Picatinny mount, the collimator can also be installed on rifles or PCC carbines.

Main features of the Vortex Defender-ST MOA Tan collimator:

• MRDS sight designed for duty and service weapons

• TAN military color finish

• Rugged construction made from 7075 anodized aluminum

• Button lock to prevent accidental changes

• Large aspherical lens for a wide, clear image

• Optics protected by Armortek hard coating

• Automatic shutoff system to extend battery life

• True 1× magnification, free from parallax error

• Motion activation for instant readiness

• Mounting base compatible with the DeltaPoint Pro standard

• Shockshield polymer insert for added shock and recoil protection

• Fast-Rack textured surface for better grip during slide manipulation

• 12-step dot brightness adjustment (10 for daylight, 2 for night vision)

Durability and functionality
The housing is precision-milled from 7075 aircraft aluminum, providing a strong yet lightweight design at just 42 grams. Hard anodizing gives the surface superior resistance to scratches and wear. The DeltaPoint Pro mounting footprint allows for direct installation without extra adapters or modification. Aggressive Fast-Rack fluting on the front enables reliable slide racking using the sight. The waterproof and dustproof body, together with the Shockshield insert, ensures durability against impact and recoil. Its slim profile allows for easy and discreet carry. Large side buttons provide a simple, user-friendly interface.

Optical quality and performance
The Defender-ST is equipped with a high-quality lens featuring multi-layer anti-reflective coatings for excellent light transmission, producing a bright, sharp, and parallax-free image. The large, aspherical lens guarantees clarity not just in the center, but across the entire field of view. The 3 MOA red dot offers a balanced combination of speed and accuracy, with adjustment clicks in 1 MOA increments. Elevation can be adjusted up to 115 MOA, and windage up to 145 MOA. The Armortek coating protects the lens from scratches and environmental damage.

Power and reliability
The collimator is powered by a CR2032 battery, offering up to 25,000 hours of operation at a medium brightness setting. The top-loading battery compartment allows for quick battery changes without removing the sight. There are 10 brightness levels for daytime use and 2 compatible with night vision. A motion sensor automatically powers down the sight after 14 hours of inactivity, putting it into sleep mode; raising the weapon instantly reactivates the sight. The controls and diode are engineered to withstand recoil and harsh environments for reliable field performance.

Included in the box:

• Picatinny mount

• Rubber cover

• Optics cleaning cloth

• CR2032 battery

• Adjustment wrench

• Set of 6 mounting screws

Technical data:

• Dot color: Red

• Magnification: 1×

• Reticle: 3 MOA dot

• Power: CR2032 (3V) battery

• Adjustment per click: 1 MOA

• Footprint: Leupold Deltapoint Pro

• Housing material: Aluminum

• Max elevation adjustment: 115 MOA

• Max windage adjustment: 145 MOA

• Adjustment per rotation: 25 MOA

• Total length: 46.5 mm

• Weight: 42 g

• Warranty: VIP lifetime warranty from Vortex Optics

• Manufacturer: Vortex Optics, USA

• Supplier code: DFST-MRD3-T