Crimson Trace LG-303 Lasergrips Ruger SP101 Laser Sight - Red - The LG-303 is an enhanced laser sight offering for Ruger SP101 revolvers. The LG-303 features a comfortable and ergonomic rubber overmold material for a better positive-firing grip on the weapon. With a front activated switch, the Lasergrips is engaged automatically, or instinctively, as you hold the revolver naturally. The LG-303 installs in seconds and is fully adjustable for windage and elevation. Beam Intensity: 5mW Peak, 633nm, Class 3R Red Laser Fully Adjustable For Windage And Elevation Black Rubber Overmold Grip Replacement Dot Size: Approximately 0.5in At 50ft Front Instinctive Activation Button Installs In Seconds