Enhance your AR-15 with the FireField Charge AR Red Laser Sight. Weighing only 2.4 oz, this laser aiming device can put a red 3.0 MOA dot on your targets for as long as 40 hours. It can be easily attached to a Picatinny/Weaver rail on your rifle and aligned to your trajectories using its windage and elevation adjustments with generous ranges. Once your device is aligned and loaded with one CR2 battery, it can be activated via an On/Off push button or the included pressure pad. To ensure seamless operation in a variety of environmental and battle-like conditions, the aluminum housing is impact-resistant (800 g) and water-resistant (IP55).