UTG 120lumen Sub-compact LED Pistol Light,23mm Head,QD Mount Ambidextrous Finger Adjustable On/Off Switch, Hard Anodized Finish for Wear Resistance UTG Unique Reflector, Circuit Board, and Best in Class with Compact CREE R2 LED 120 Max Lumens, 1+ Hour Operating Time at Max Brightness with Only One CR2 Lithium Battery Anti-sliding Posi-tab in Mount Base with 3.6mm Width and 1.6mm Height to Prevent Movement Complete with Integral Max Strength Picatinny/Weaver Style Mounting Deck with QD Cam Lever and Spring Tension Control