The Viridian E Series Red Laser Sight is specifically engineered for the Ruger MAX-9 pistol offering the most powerful red laser legally available for rapid target acquisition when you need it most.Viridian E Series Red Laser Sight for Ruger MAX-9Trigger guard mounted design for model-specific fitMost powerful red laser legally availableAmbidextrous on/off button with 5-minute auto shut-off25-yard effective range in daylight 1-mile range at nightConstant laser operation with 6+ hours battery lifeEasy windage and elevation adjustmentQuick installation onto trigger guardDesigned specifically for everyday conceal and carry owners this laser sight provides reliable performance and rapid target acquisition for personal defense and tactical applications.