Surefire LED Handgun Weapon Light Weapon-mountable LED light with virtually indestructible LED; batteries included Generates 170 lumens of brilliant white light focused by a Total Internal Reflection (TIR) lens Quick-detach rail clamp, accepts optional pistol grip and long gun fore-end switches High-strength aerospace aluminum construction with Mil-Spec anodizing; impact-resistant polymer; coated tempered window Fits handguns and long guns with Picatinny or Universal rails