Crimson Trace LG-401 Front Activation Lasergrips 1911 Full-Size Laser Sight - Red - The flagship LG-401 is Crimson Trace's most popular 1911 laser sight model for Government and Commander variants. Featuring rugged polymer side panels and a rubber overmold activation button, these are the recommended Lasergrips for most 1911 shooters. Standard to Crimson Trace Lasergrips, the LG-401 features instinctive activation. This means the laser sight automatically springs to life when the weapon is held in a natural firing grip. Please note, this product is not compatible with ambidextrous safety levers. Crimson Trace stocks shortened ambi-safeties from Wilson Combat in black and stainless (gunsmith installation required). Fits Most 1911 And 1991A1 Full-Size Frames With Grip Screws Measuring 3-1/16in Apart; Beam Intensity: 5mW Peak, 633nm, Class 3R Red Laser; Adjustable For Windage And Elevation; Dot Size: Approximately 0.5in At 50ft; Front Instinctive Activation Button; Black Grip Replacement;