I tried searching, but couldn't find much???
I'm wanting to upgrade the internals, and the trigger(possibly electric?) but I have no idea what I'll need and where to get it

. I've had it for several years, and since it's the first one I bought I wanna try to keep using in the woods, and for a loaner.
I have a barrel, and use a quick connect hose for supply, and wanna keep the outside pretty much stock. Any help would be appreciated!