The Sightmark Wolverine CSR Red Dot Sight is a compact and lightweight device with adjustable digital switch brightness controls and extremely low power consumption, designed specifically for shotguns and short-barreled rifles. The sight is powered by a single AA battery with a battery life up to 1,000,000 million hours on low power and up to 50,000 hours on setting 6. The CSR also offers variable brightness and night vision modes, which enables the ability to co-witness with a night vision sight. The Sightmark Wolverine CSR Red Dot Sight is waterproof and submersible to three fee with operating temperatures from -22 to 122 F. The Wolverine sight is housed in a single piece of 6061-T6 aluminum that is rubber-armored and protected by a scratch resistant, anti-reflective lens coating. A rubber lens cover, a picatinny mount and a riser for absolute cowitness are included.