Vector Optics Frenzy FA 1x17x20

Feature Highlights

• Enclosed Aspheric Lens Design: The aspheric lens delivers a crisp, distortion-free sight picture while keeping the housing thinner and lighter than traditional spherical-lens red dots.
• Multi-Reticle (MRT) System: Switch between a 3 MOA dot, circle, and crosshair to match the shooting scenario, from close-range defense to more deliberate aiming.
• Motion Sensor Activation: The sight automatically wakes when movement is detected and powers down when still, so it's ready the moment the firearm is drawn without needing to be switched on manually.
• IP67 Waterproof, 1500 G Shockproof Housing: Built from 7075-T6 aluminum alloy, the enclosed emitter design keeps the optic functional in poor weather and rugged use conditions.

About the Frenzy FA Series

The Frenzy FA line is part of Vector Optics' premium Frenzy red dot family, positioned specifically for defensive use and everyday carry (EDC). Within the broader Frenzy range — which also includes competition- and marksman-oriented variants — Frenzy FA models are built around fast target acquisition, compact size, and rugged reliability rather than competition-specific features.

All Frenzy FA sights share a parallax-free optical design, motion-sensor activation, and battery life rated up to 50,000 hours on their lowest power setting, aimed at eliminating the need to remember to switch the sight on or off. The housings are waterproof and shock-rated for daily carry and adverse conditions, and battery replacement is designed not to disturb the sight's zero.

Individual models within the Frenzy FA line vary in window size, reticle options, footprint, and specific mounting compatibility (including pistol-specific cuts for certain handgun models), but all are built around the same core philosophy: a clear, fast sight picture for close-range engagement in a compact, carry-ready package.

About the Model (Vector Optics Frenzy FA 1x17x20 Red Dot Sight MRT)

The Frenzy FA 1x17x20 (model SCRD-M68) is an enclosed, aspheric-lens red dot sight built for defensive use and everyday carry. The 17x20 mm window keeps the sight compact while the aspheric lens design reduces the distortion and edge aberration typical of simpler lens shapes, giving a clearer sight picture without adding bulk to the housing.

Rather than a single fixed reticle, the sight offers a Multi-Reticle (MRT) system, letting the shooter choose between a 3 MOA dot, a circle, and a crosshair depending on the scenario. Illumination is adjustable across 9 daylight settings and 2 night-vision-compatible settings, and a built-in motion sensor automatically activates the sight when it detects movement and powers down when the firearm is at rest, extending battery life without requiring the shooter to manage the power switch manually.

The sight is essentially parallax-free, with parallax set at 33 yards, and adjusts in 1 MOA clicks with more than 90 MOA of elevation and windage adjustment range. The battery is accessed through a side-loading tray, which allows the battery to be changed without disturbing the sight's zero — a practical benefit for a defensive optic that needs to stay zeroed between uses. Housed in 7075-T6 aluminum alloy and rated IP67 waterproof and 1500 G shockproof, the Frenzy FA 1x17x20 is built to withstand daily carry and rough handling. At just 26 g without the mount, it adds minimal weight to the firearm, and it mounts via a Weaver rail using the MGT footprint.

About the Manufacturer

Vector Optics is a Chinese optics company founded in 2007 by Stephen Shen, originally under the name Sunclear before adopting the Vector Optics brand shortly after founding. The company has grown from a small operation into an established manufacturer of riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and related mounting and shooting accessories, with products exported to more than 80 countries and a U.S. branch established in Utah.

Vector Optics positions itself around delivering consistent quality and competitive pricing across hunting, defense, and competitive shooting disciplines, and has built out several sub-brands to serve different market segments and price points. The company backs this riflescope with a 10-year warranty, per Optics Trade's warranty terms.

Main Features

• Model: SCRD-M68
• Window / Objective Lens Size: 17 x 20 mm
• Lens Design: Enclosed Aspheric Lens
• Reticle: Multi-Reticle (3 MOA Dot, Circle, Crosshair)
• Reticle Color: Red
• Parallax: ≤ 2 MOA, Set at 33 Yards
• Click Value: 1 MOA
• Elevation Adjustment Range: ≥ 90 MOA
• Windage Adjustment Range: ≥ 90 MOA
• Footprint: MGT
• Mounting Rail: Weaver
• Illumination Settings: 9 Daylight + 2 Night Vision
• Activation: Motion Sensor
• Battery Type: CR1620
• Battery Life: Up to 50,000 hours (Lowest Power Mode)
• Battery Placement: Side Loading
• Waterproof: IP67
• Shockproof: 1500 G
• Working Temperature: -20°C to +60°C
• Housing Material: 7075-T6 Aluminum Alloy
• Mount Material: 6061-T6 Aluminum Alloy
• Finish: Matte Black
• Weight (without mount): 26 g

Warranty

The red dot is covered by a 10-year warranty.

In the Box

• Vector Optics Frenzy FA 1x17x20 Red Dot Sight
• Weaver Mount
• Hex Keys
• Vekey Battery Tool
• Cleaning Cloth
• User Manual