from crimson trace web site: The LG-401 is our 1911 laser sight model for Government and Commander variants, This PRO CUSTOM model features a stylish carbon fiber 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. The grips are like new still, as you can see from the pics below, i don't have the box or any of the paper work, they use standard size bushings, theye will work with ambidextrous safety or standard. asking $175 shipped or $150 FTF.