Well, just remember you first heard it from me. The very first ever Air Pressure water gun in retail history is the Cosmic Liquidator from 1977.
Big historical news for the ones who care about water gun history.



Cosmic Liquidator

Output = 0.33X

Shot Time = 20 seconds till severe drop off

Shot Distance = reaches up to 25 feet

Blaster Length = 9 inches

Tank Length = 6.5 inches

Pumps = 60 pumps

Tank Capacity = 700 ml


To see the full detailed review go to my new WaterGun guide on chapter VIII: Practical Water Gun Guide. (viewers should be avove 13 years old)