Rubber band airsoft cannon w/ magazine

Just something my boys asked for. Suitable for standard BB/airsoft-bullets - for 5 ones to be precise. Automatic reloading by pulling the "trigger" back to its end position. Might sometimes need a finger on top to prevent momentum let spill all of your cannonballs... The parts are printable without support - just ensure orientation like shown in the picture. No raft needed. Dimensions are chosen that it works well without any rework. If your tolerances will be different to mine I suggest to use some glue to fix the two endcaps at the rod. Different rubber band lengths can be used like shown in the picture. Enjoy!