Description Immediate targeting with a bright red or green laser beam when you hold your gun in a natural firing grip. This innovation, Instinctive Activation, saves precious time when seconds count. Lasergrips are compatible with your favorite holster, feature a master on/off switch, provide 2 (green) to 4 (red) hours of battery life, are easily user-installed with zero modification to your firearm and are completely user-adjustable for windage and elevation. Uses two 2032 lithium batteries. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.