Weltool TC59 is a 1-inch diameter Click-On Lock-Out switch tail cap, compatible with Surefire 6P, 9P,6PX, C2, C3, Z2, L5, M2, M3, M3T and other torches. It can replace Z41, Z58, Z59 tail covers. It can withstand 4A current. The TC59 V1.0 FDE tail cap are all aviation CNC machined aluminium.