The M6 2320 uses 2 CR123 lithium cells (included) to power a hi-pressure Xenon lamp for intense brightness. The tough CNC-machined aluminum chassis has a knurled body for a secure grip. Plus, the convenient push button tail cap switch has a safety lockout feature to prevent inadvertent battery depletion or accidental activation. It comes with a free Cordura® holster with back-up battery pouch. The M6 2320 is the ideal tactical flashlight, with its durable design and blinding beam.