The Viridian HS1 FDE combines a low-profile hand stop with an integrated red laser sight, designed for AR-platform rifles with M-LOK mounting. The unit places a pressure-activated button in an ergonomic position so the laser can be engaged from a variety of common grip styles. Windage and elevation are adjustable to support alignment to the host firearm.
Built to serve as both a tactile hand stop and a visible aiming aid, the HS1 delivers a compact laser solution that preserves forward-hand placement while providing a sighting reference in daylight and low-light conditions.
Key Specifications
- Finish is Flat Dark Earth.
- Fit is AR-Platform.
- Mount Type is M-LOK.
- Laser Color is Red.
- Wavelength is 635-650nM.
- Battery Size is 1/3N.
- Battery life (constant) is 1.5 Hours.
- Activation method is Automatic Activation.
- Adjustable for Windage/Elevation.
- Range is listed as 100 Yards Day/2 Miles Night.
Compact and purpose-built, the HS1 FDE provides a straightforward combination of hand-stop protection and an integrated red laser for sighting reference. Its M-LOK interface and ergonomic activation make it suitable for a range of AR-style setups where consistent hand placement and a low-profile aiming aid are desired.





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