+1 Shell Reloading = Cap Spacer for ULD XM1014 Foam Dart/Nerf Blaster Reloading Tube

The stock reloading tube has a capacity of 5 shells. With this simple cap spacer, you are able to reload one more shell - up to 6 shells.

It's just a simple piece to print and a very simple solution. In my case the 3.5mm height works perfectly, the part fits precisely on the cap screw and enabling to reload the 6th shell.

You should measure how much space do you need to load the 6th shell and then readjust print height before printing. The tolerance for the spacer's diameter is perfect in my case, you might need to scale the diameter up a tiny little bit if it doesn't fit your tube cap.