The Ugly Truth About Airgun Blog

https://delta-wiki.win/index.php?title=How_to_Sell_OTW_Red_Dot_Sight_to_a_Skeptic

A gun can be a ranged weapon ordinarily built to pneumatically discharge projectiles[one] which are sound (most guns) but can also be liquid (as in h2o guns/cannons and projected drinking water disruptors) as well