The LG-401 P16 is our most popular 1911 laser sight model for Government and Commander variants. This PRO CUSTOM model features a stylish "Chainmail" finish. With 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 that the laser sight automatically springs to life when the weapon is held in a natural firing grip.•Platform: Pro-Custom Lasergrips•Material: Polymer •Attachment: Grip Replacement•Activation Location: Front Activation•Sighting: Factory Sighted at 50'•Master On/Off Switch: Yes•Battery Type: Two #2032 Batteries•Laser Battery Life: Over Four Hours•Laser Output: 5mW Red Laser•Activation Mode: Pressure Activated•Laser Visibility: Approx .5 Inch Diameter at 50 Feet•Wrench Size: 0.028•User Adjustable: Windage and Elevation•Finish: Polymer Grip with Rubber Overmold Activation Pad•Installation: User Installed•Color: Walnut•Dot Size: Approx. 0.50" at 50'•Fits 1911 and 1991A1 full-size frames, including: Auto-Ordnance, Les Baer, Colt, Kimber, Nighthawk Custom, Olympic Arms, Para-Ordnance (full-size, single-stack), Safari Arms, Sig Sauer, Smith & Wesson, Springfield Armory, Taurus, Dan Wesson, Wilson and most other 1911’s with grip screws measuring 3-1/16" apart.