Designed 3 modifications (some aesthetic, some performance) for the Bug-A-Salt 3.0 gun / shooter.
Mod1 - Spring Tensioner
DISCLAIMER - This mod requires almost complete disassembly to get to the spring.
I did not do comparison testing but in theory adding this spring tensioner will compress the spring more, resulting in a more powerful shot.
Mod2 - Pump Grip Handle
This grip is designed to have a very similar shape to the main original grip, just slightly shorter in length.
Use the original 2 screws when replacing.
There are also Inserts available to be printed and inserted to the grip for more aesthetic.
Mod3 - Muzzle Brake Extended
This extended muzzle over doubles (original length 43.8mm, newer length 100mm) the original muzzle to give a closer grouping of the salt when shot. I did a 5 foot test shot to compare, you can see on the tin foil there is a slightly closer grouping.
Print Profiles
All Print Profiles use PLA and I have printed all parts at 100% infill for strength. I am sure this is overkill and less infill would work.