Surefire G2ZXCBK G2ZX CombatLight 320 Lumens is a compact tactical flashlight designed for tactical usage. Output is 320 lumens using an LED light source. The body is Nitrolon polymer and the finish is Black. Features CombatGrip with a reduced-diameter mid-section and a rubber grip ring, and a tactical tailcap switch that functions either as momentary-on when pressed or a constant-on when twisted. It uses two CR123A lithium batteries and is weatherproof with an O-ring and gasket seal.