The Viridian E-Series Red Laser Sight is specifically engineered for everyday conceal and carry owners offering the most powerful red laser legally available with rapid target acquisition when you need it most.Viridian E-Series Red Laser Sight for S&W M&P Shield 9/40Trigger guard mounted design with easy installation25 yard effective range in daylight 1 mile range at night6+ hour continuous battery life with constant laser operationAmbidextrous on/off button with 5-minute auto shut-offEasy windage and elevation adjustmentDoes not fit M&P Shield EZ modelsPerfect for concealed carry applications this model-specific laser sight delivers professional-grade performance and reliability for personal defense and tactical use.