HellFighter X-8IR - Infared Illuminator Kit - Includes X-8 IR Light and Single Ring Mount Sturdy aircraft grade aluminum body Perfect for the AR Platform  Great handheld light Length: 5.75 inches x 1.5 inches, Body Diameter: 1 inch, Weight: 6.5 ounces, Powered by (2) cr123 lithium batteries - included Lifetime Warranty (excludes bulbs and batteries)