Without a doubt, this is the biggest smoke grenade available to you without joining the military. This is military grade and it pumps out a MASSIVE quantity of smoke in the shortest time possible. The smoke grenade is ignited by the standard side-swipe wire pull making setting off this badboy really easy. Smoke will start to billow straight away and last from 45+ seconds! 
 
This grenade produces 3x more smoke than the WP40.