The Viridian HS1 stop is a hand stop and green laser in one M-LOK mounted unit, finished in black. Instead of bolting a laser somewhere awkward and a hand stop somewhere else, you get both functions in a single low profile part that indexes your support hand exactly where you want it.
Two jobs, one piece of hardware, one set of slots consumed. On a slim handguard that is a real advantage.
What the Viridian HS1 Stop Brings to a Build
A hand stop does two things. It gives your support hand a repeatable index so your grip is the same every time you mount the rifle, and it keeps that hand from sliding forward past the muzzle on a short barreled build. Adding a green laser to that same part means your aiming device sits low and forward, out of the way of optics and lights.
Green lasers are the practical choice for daylight and low light use because the human eye is most sensitive to green wavelengths, which makes a green dot far easier to pick up than a red one at the same power. From Viridian, a company that has specialized in weapon mounted lasers for years, the unit is built to hold zero under recoil.
Features That Do Real Work
This is a compact part with a short, focused feature list.
- Integrated hand stop that gives the support hand a positive, repeatable index point.
- Green laser aiming module built into the same housing.
- Direct M-LOK mounting for a secure, low profile fit on modern handguards.
- Black finish that blends with standard rifle furniture.
- Combined design that frees up handguard real estate for lights and slings.
Mounting and Positioning Explained
M-LOK is the negative space mounting standard used by the majority of quality free float handguards. Hardware rotates inside the slot and clamps against the interior wall, spreading the load and resisting the shifting that plagues cheaper clamp on mounts. That matters here more than usual, because a laser that moves has lost its zero.
Position is a personal decision, but there is a rule of thumb worth following. Mount the Viridian HS1 stop where your support hand naturally lands with the rifle shouldered and your elbow relaxed, not where it looks good in photographs. Shoulder the rifle with your eyes closed, open them, and mount the unit where your hand already is.
Zeroing, Batteries and Care
Zero the laser at a distance that reflects how you will use the rifle. A close zero is usually right for a defensive carbine, while a longer zero suits a rifle used at distance. Confirm the zero after any change to the handguard hardware, and check the mounting screws periodically as part of your normal rifle inspection.
Treat the battery like any other electronic on a fighting rifle. Change it on a schedule rather than waiting for it to die, and keep spares in the same pouch as your other spare batteries. Cold weather shortens battery life noticeably, so plan accordingly for winter range days.
Training with a laser is its own skill. Used well, the Viridian HS1 stop lets you shoot from awkward positions where you cannot get behind the optic, around cover, from a vehicle seat or from a low prone position with a barrier in the way. Practice those positions deliberately rather than assuming the laser will solve them for you on demand.
Keep the emitter lens clean, since carbon and dust will diffuse the beam and make the dot look fuzzy. Wipe it with a soft cloth rather than a shirt tail. Browse our optics collection for the red dots, lights and mounts that complete the front end of a modern rifle.
Simple, compact and genuinely useful, this is a smart way to add an aiming laser without cluttering your handguard. Ships direct to your door, no FFL required.
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