Zap It: Ammo Refills (Entertech, 1986)

Remember this? Neither do we! 
Apparently, it's "ammo" for a weird water gun known as the "Zap It" - an uzi-like weapon, that squirts colored water, that supposedly will come off after a day (we're not sure if this is still true, though). 

Check out an old commercial here!

Condtion: Good, new in packaging.