A simple yet elegant design, this mod is not only tough -- she is a beauty too.  Exclusive to HotVapes, the BombShell is solid aluminum with a recessed brass button.  Of course she features a 510 connector port, which accommodates a LR306 as well.

Substantial in the hand but not too heavy, capable of handling one 18650 or two rcr123 batteries, the Shell is versatile enough to meet your 3.7v or 6v+ vaping preference.  Though there is a small vent hole on the Shell's bottom, always use circuit protected batteries.  Never use unprotected Li-ion batteries.  Lithium-ion batteries can and have failed.  Circuit protected batteries do not guarantee a battery melt down will never occur, they do however minimize the risk of a melt down.  Should a melt down occur the vent hole will allow gases to escape the cylinder that houses the battery.

Currently available in six colors: True Black, Motobyke Silver, Analogue Blue, Purple Haze, Awesome Amber and Soylent Green; the Shell is not for the faint of heart.  At just over 4" tall and 1" in diameter the BombShell may attract attention.  She likes to be heavily sedated with HV Big Heart Flavors, and if you roll her across the table don't expect her to become activated -- she has a recessed button after all.  Do take her out with you though; and should anybody ogle, she does pack a helluva wallop.