The crimson trace lasergrips platform is a decisive tactical advantage for handguns and changes the way gun owners approach personal protection.It offers what no other handgun accessory can: immediate targeting laser beam when you hold your gun in a natural firing grip.The innovation instinctive activation saves precious time when seconds count.The lasergrips features a master on/off switch are easily user-installed with zero modification to your firearm and are completely user-adjustable for windage and elevation.This red laser model is compatible with 1911 full size.Power Switch: On/OffWavelength: 620-670 nmDot Size: .50" @ 50 ftPower: 5mWRange: 50 ftWeight: