What's Holding Back the bear river bb gun Industry?

https://delta-wiki.win/index.php?title=The_Most_Common_bear_river_bb_guns_Debate_Isn't_as_Black_and_White_as_You_Might_Think

A gun can be a ranged weapon commonly designed to pneumatically discharge projectiles[one] which can be reliable (most guns) but will also be liquid (as in h2o guns/cannons and projected h2o disruptors) or simply