Red dot Laser sight rifle gun scope - Rail & Barrel Mounts Cap Pressure SwitchRed dot Laser sight rifle gun scope Rail & Barrel Mounts Cap Pressure Switch ITEM DESCRIPTION Red Dot Laser Sight Scope with Gun Mount Durable all metal construction Windage and elevation adjustable (tool included) Interchangeable cap switch and pressure switch Mount for 20mm standard rails 8 shaped mount for 1" barrel Specifications Dimensions 4. 72(length) x 1. 54(Diameter) Weight 150g(4. 5 oz) Power: 5mw Wavelength: 650 nm Reaching Distance: 100m