The LG-401G green laser sight for 1911 pistols combines Crimson Trace’s Lasergrips platform with green laser technology. Using the smallest green laser diode available, the LG-401G emits a powerful beam with over two hours of run time on four lithium button cell (#2016) batteries. The LG-401G utilizes Crimson Trace’s Instinctive Activation feature (the laser sight is activated when the pistol is held in a normal firing grip). A master on/off switch allows the shooter to completely power down the unit for range training without the laser. MSRP $399.