The LG-401G green laser sight for 1911 pistols combines Crimson Trace’s celebrated Lasergrips® platform with the visible advantages of green laser technology. Using the smallest laser green laser diode available the LG-401G emits a powerful green beam yet still provides over two hours of run time on (4) #2016 batteries. The LG-401G utilizes Crimson Trace’s famed Instinctive Activation™ technology – meaning that when the pistol is held in a normal firing grip the laser sight is activated. A Master On/Off switch allows the shooter to completely power down the unit for range training without the laser. Green Lasergrips® set a new standard in 1911 green laser technology. – Platform: Lasergrips® – Material: Polymer – Attachment: Grip Replacement – Activation Location: Front Activation – Sighting: Factory Sighted at 50′ – Master On/Off Switch: Yes – Battery Type: Four #2016 Lithium Batteries – Laser Battery Life: Approx. Two Hours – Laser Output: Up to 5mW Green 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 – Warranty: Three Year Full Warranty – Color: Black – Dot Size: Approx. 0.50 at 50′