SureFire WeaponLights with MasterFire Rapid Deployment Holster (RDH) InterfaceCam slotted bezel and rear locking lugs on battery housing interface with MASTERFIRE holster for secure weapon retention Serves as the interface for the MASTERFIRE holster system for almost any pistol with a tactical rail Undulated reflector creates a Broad, smooth maxvision beam for close quarter applications; beam pattern optimized for the human Eye Dual output, mode selector slide switches for toggling between 1, 000 and 300 lumens of continuous