I did not find something like this on makerworld so I decided to share this with you. It is a reupload of rance0208's rubber band blaster, found on thingiverse.

I have remixed it and added alternative left bodies without the window and with a picatinny rail mount on the side.

For assembly you will need the printed parts and additionally:

M3x25 x4
M3x35 x1

M2x20 x25
M2x18 x4
M2x16 x2
M2x10 x14

M2screw nut x40
M3Cap screw nut x4

10MM rubber band X6

Here you can see two Test videos:
Video 1

Video 2

I could not dowload the second video so I could not integrate it here.

I have included the User guide in the files-section

I would be happy if you leave a like and a make.

Good print and have fun!