Barska Red Dot Electro Sight with Laser Features 4 different Red/Green reticle patterns and 5 Position Rheostat Illumination Designed specifically for tactical shooters that need a versatile scope for short distance quick acquisition shooting to medium distance shooting Panoramic sight with built-in external adjustable red laser Ideal for handguns, shotguns, crossbows, M-16's and more Unlimited Eye Relief Class IIIA Laser Product, 5mW power output