Crimson Trace LG-389 Lasergrips Ruger P-Series Laser Sight - Red - With nearly 25 years of proven performance in the field, the Ruger P-Series is an excellent choice for professional service or personal protection. The LG-389 Lasergrips laser sight offers dual side activation, allowing the laser sight to spring to life when the weapon is gripped in a natural firing position. It fits all metal frame Ruger P-Series handguns, including 85, 89, 90, 91, 93, 94, and 944. It is installed with the firearm's original grip screws. Beam Intensity: 5mW Peak, 633nm, Class 3R Red Laser Dot Size: Approximately 0.5in At 50ft Dual Side Instinctive Activation Black Grip Replacement