Upgraded Water Blaster

Updated to prevent the plunger from coming out of the tube. Allows for “easy rapid fire”. This was basically just scaling up and down existing pieces then mashing them together + some boolean modifiers in Blender. I had some issues with the screw cap going on all the way, but get's plenty tight/is nothing but an eyesore. I don't think I'll have time in the foreseeable future to adjust - if it bothers you please make the fix :) and post if you do! Happy Printing!