Water Plug Sets for use with Water Shots in the Royal Arms RADC series of Disrupter Cannons as well as any 12 Ga Disruptor (i.e. PAN, Carbon Fire, Titan Etc inches). Each Bag of Water Plugs includes 25 sets of Red & Black Caps. Black plug seals chamber, Red plug seals muzzle. The Red Cap can also be used to keep dirt and debris out of cannon while not in use. When using the red plug for Water Shots it is recommend to cut a slit in the top of the Red cap, to bleed the excess water and remove air for the disruptor.