21700 Tube for MC13 II Titanium & Copper

Package List
1x a 21700 tube (Ti raw or Ti stonewashed)
1x spare waterproof-oring

Tip:
1. This model is a tube, not flashlight. not included any battery.
2. This tube is designed forMankerlightMC13 II Ti-Cuthe owners can also use 21700 battery to get longerilluminationrun-time in practices.
3. This tube is fit for button-top/flat-top unprotected 21700 battery. Please DO NOT use protected 21700 battery because battery length.
4. This tube is also compatible forMankerlightMC13 II SFT40,MC13 II 90.2,E14 IV