The Viper 21700 by Purge Mods is brings aesthetic and quality right to your palms. This heavy hitting piece of hardware, tapers to 28mm at the top which ensures for a minimum voltage drop and maximum output and features some exquisite CNC machine work and divots from top to bottom. Designed for 21700/20700/18650 batteries.
With a button housing comprised of 3 heavy duty magnets this weighty and flawless mod ensures a powerful experience. 

The Viper Mod Features

Tapers to 28.5mm on top
Fully adjustable button to compensate for battery rattle
Deep CNC engravings
Hybrid top
Locally made in Orlando U.S.A
The Viper Mod Contents

1 x Viper
1 x Hard shell carry case
1 x Certificate of authenticity