I thought of that once. I personally like the idea of setting a hand crank up to a pump which turns it really quickly for you. Another idea I have had is making it so that the gun forcibly reset the trigger after every shot for you. This would make it so all you have to do i maintain pressure and the gun will keep on firing and resetting the trigger to the forward position.
I have mostly non-sporting firearms
In NJ, technically speaking, ALL guns are illegal
Also in my state there is such thing as a Class III BB gun :barf:
Happy to say that despite the NJ AWB I still manage to make my guns look scary