The FLS-2000 is an improved laser sight designed for the PAN Disruptor manufactured by Ideal Products. Because it does not have any thumb screws or switches, the FLS-2000 can be operated while wearing bomb mitts. Installation requires simply to slip the sight over the barrel. It will automatically turn on and cling to the barrel magnetically. Removing the sight from the barrel will turn the sight off. The FLS-2000 features a bright laser spot that is visible in sunlight. SPECIFICATIONS: Output Power: 4.5mW. Wavelength/color: 635nm RED or 532nm GREEN Battery: 3 volt CR123 lithium Barrel size: Fits 1.125" diameter Dimensions: 1.5" diameter both. Red = 6.0 " long. Green =6.5" long Warranty: Limited 1 year from date of purchase.