Hey guys, My name is Saad Ali from Karachi.
www.facebook.com/Hellbolt.Engineering
I build combustion cannons as a hobby and a small venture, thought i'd share my work here.
I shared my work back in 2010, thought i'd share it here again as its almost 2013 
These are combustion cannons, they use aerosol or butane for fuel & fire squash balls as primary ammo and a host of other projectiles as secondary ammo. (socks, lemons, rolled foil, plastersine rolls, custom paint balls, etc)
The purpose of these cannons is to have some fun when heading outdoors to a beach or farm, great for some target practice & projectile launch distance tournaments amongts friends.
Some new pictures embedded, feedback will be appreciated -







Cheers!