Firefield's Charge AR Red Laser Sight is the ideal laser sight of your AR rifle. The laser has a visible daytime range of 20 yds and stretches out to 300 yds at night. It is powered by a single CR2 battery with an approximate battery life of 40 hrs. The laser is easy to operate with its push button and pressure pad, and the windage and elevation adjustments make this laser sight is a reliable accessory. It is constructed of aluminum with a matte black finish and is compatible with Weaver and Picatinny mounts.Featuring a compact and low profile design, the Firefield Charge AR Red Laser Sight is the ideal laser sight for your favorite black rifle. At only 2.4 oz, this lightweight accessory goes unnoticed until it's time to engage a target. The laser has a visible daytime range of 20 yd and stretches out to 300 yd at night. Powered by a single CR2 battery, this sight has a battery life of approximately 40 hr. The Charge AR Red Laser Sight is easy to operate and features both a push button and pressure pad. Windage and elevation adjustments make this laser sight one of the most reliable accessories you can carry on your rifle. This laser sight is constructed from aluminum with a matte black finish and is compatible with weaver and picatinny mounts. Features: Low profile design Windage and elevation adjustable Powered by single CR2 battery Compact and lightweight Visible red laser