Hi,

today we have for you the most potent of all gravity weapons!
Legionary Gravity Cannons

http://bitsofwar.com/home/445-legionary-gravity-cannons.html

Here you can watch visualization:

You can find all Kromlech gravity weapons here:

http://bitsofwar.com/search?controller=search&orderby=position&orderway=desc&search_query=Gravity

cheers,

Maciej