I don't think you'll find one. Old light and spare parts for Fenix lights, aren't that much around.Anyone know where I can get a new tail cap in black?
Need the whole tail capDo you need the whole tailcap or just the switch? The TK series switches should interchangeble for most lights (TK11, TK12, TK15, TK21, TK22) starting from the TK11 and TK12 R5 editions. Previous models (TK11 and TK12 R2 or earlier) must have had different threads and probably different tailcap and switch too!