make it into cap gun airsoft

if you want this to be a real toy then use my barrel, put something like a 6mm tube or airsoft barrel on the front, put an about 2mm hole empty or full tube into it and you should be good to go. if your iq is above 80 you will figure it out. also i recommend removing barrel if you just want the sound. you should first put one in from the back and then take the powder from others and run it down the front of the shell and seal with a bb. i have no idea what's the structural limit but for safety i recommend for the barrel and the receiver at least petg and 100% concentric infill as less might result in catastrophic failure.