Elastic Band Gun (Based on Glock 19)

thingiverse

Still a work in progress though fully functional as a semi auto elastic band gun. You can activate the trigger using a clicky pen spring but it's not necessary because when loaded the elastic bands provide some natural trigger weight. This might cause double firing if the tension from the elastic bands is too high so don't overload it with anything too substantial. I've included a Fusion 360 file for you to modify as you see fit. The exterior design is based on a Glock 19, making it comfortable to hold and visually appealing. The "sight" where you place the elastic bands can slide forward and backward to adjust tension according to the size of your elastic bands. It's quite bulky but I was able to print it successfully on my Ender 3 by printing it diagonally. If you have any questions, feel free to ask.