Stealth lives here!
...its madvapes
These are normally $20-$25.00 each, so this is the cheapest price I have seen. This is a simple 3.7v mod purpose built for stealth vaping. The 510 connection is on the bottom so the entire cartomizer sits inside. There are extender adapters so you can use an atomizer or tank.
WHERE: http://www.madvapes.com/