It is a mini-nerf handgun which I used to pull the pull-tab to reload the bullet. When I pull the trigger, the pull-tab is released and go back to the original position. However, because of an accident, the pull-tab is broken which I am unable to pull the pull-tab to reload the gun. Therefore, I have to 3D print a ring-pull in order to fix the broken nerf gun.

The part can be modeled because the edge of the broken part is plain which can be glued with superglue. When the super glue is dry, the 3D printed ring pull can be connected to the original handgun.

I have added a cover to the original design which the cover elevates the area for the superglue to glue. Now it takes more force to break the pull-tab.