Amazon.com: Weltool W65 Weapon Light Body for Surefire M600DF KE2-DF,Z68 Tailcap, DS00 or UE Rear Cap LH Series Light Head,PM4 Mounts (Black) : Electronics
SureFire DS00 Switch & Tail Cap | Rooftop Defense
Z-BOLT® DS00 Dual Function Switch for SF Lights & Modlite