Gripnade by Immortal Modz 
This is a must have. One of our smallest mods available.
 
Features:
Will take 18650, 20650, 20700 and 21700 batteries
Comes with a 25mm and 28.5mm topcaps
Side fire C.A.D. (Clip activated device)
Includes locking pin
80mm tall 32mm (at the widest point)
 
Please note this is a mechanical mod. A great understanding of Ohm's law and battery safety is needed. If you do not have a great understanding of either of those please do not purchase this product.