Viridian 9120031 HS1AR Platform Handstop Black Polymer with Green Laser

The Viridian HS1AR handstop with green laser is a practical tool for AR shooters who want hand protection and aiming capability built into one M-Lok accessory. Unlike a traditional hand stop alone, the HS1AR integrates a pressure-activated green laser sight that you control with your thumb without changing your grip or reach. It's designed for tactical rifles and carbines where fast target acquisition and positive hand positioning matter—whether you're training at an indoor range, running a course of fire, or working in low-light conditions where a visible aiming point makes a real difference.

The hand stop itself protects your support hand from the charging handle while keeping your grip secure and consistent. The pressure button is positioned to activate naturally during normal shooting positions, so you're not fumbling with extra controls or awkward finger placement. You get windage and elevation adjustment to dial in your laser zero, and the green laser is visible in daylight out to about 100 yards and can reach 2 miles in darkness—useful for identifying targets and aiming when iron sights or a scope aren't your primary tool.

Built from black polymer and rated for operation between 14°F and 140°F, the HS1AR is straightforward to install on any Picatinny rail that accepts M-Lok accessories. Battery life runs about 1.5 hours of continuous operation, and Viridian backs the unit with a 7-year warranty. It's a solid choice if you want to streamline your AR and eliminate the need for a separate hand stop and laser aiming device.

Key Features

• Integrated green laser sight with pressure-activated button—aiming and hand protection in one accessory
• M-Lok mounting for compatibility with modern rail systems
• Windage and elevation adjustment for laser zero
• Ergonomic design activates naturally during typical shooting grips
• Effective in daylight (up to 100 yards) and low light (up to 2 miles)
• Black polymer construction, operating range 14°F to 140°F
• 7-year manufacturer warranty

Specifications

Frequently Asked Questions

What AR rails does the HS1AR mount to?

The HS1AR uses M-Lok mounting, so it's compatible with any rail system that accepts M-Lok accessories. This covers most modern AR handguards and rail systems built in the last several years.

Can I use the green laser in daylight, or is it only for night shooting?

The laser is visible and effective in daylight conditions out to approximately 100 yards. In low-light or nighttime conditions, it extends to around 2 miles, making it useful in both scenarios—though in bright daylight it's less vivid than in darkness.

How long does the battery last?

The 1/3 N battery provides about 1.5 hours of continuous laser operation. This is typical for compact laser systems; actual runtime depends on how often you activate the button during use.

Do I need to adjust the laser after installation?

Yes, the HS1AR has windage and elevation adjustments so you can zero the laser to your point of aim. This is a straightforward process that takes just a few minutes at the range.