Bright light. Tough body. The M6 2390 uses a 3 watt Luxeon LED for intense brightness. The strong body is CNC-machined aluminum with knurled grip for a secure handle. Plus, it has a Type III anodized coating for extra protection. The convenient push button tail cap switch has a safety lockout feature to prevent inadvertent battery depletion or accidental activation. The M6 comes with a free Cordura® holster with back-up battery pouch. 2 CR123 lithium cells are also included.