Viridian's new HS1 is the worlds first AR hand stop with integrated laser sighting device. Utilizing M-Lok mounting, grip activation buttons, adjustable windage and elevation, and an ergonomic design, the HS1 is the perfect accessory for your tactical firearm. The uniquely placed pressure activated button makes the HS1 ideal for use on AR-style firearms as the Infrared laser can be activated when the shooter is using a variety of grip styles.