Board Thread:General Nerf discussion/@comment-37595644-20190407175257/@comment-27306930-20190409001814

The bar (aka cylinder advance rod) mates with the angled tooth cam that indexes the cylinder. There's a collar and a guide that screw onto the shell that hold the whole mechanism together.

When you fiddle with that, does it seem sturdy ? Or is there a lot of play in the mechanism ?

Also, do the teeth on the cam look like they're in good shape ? Sometimes they get worn and the cam doesn't operate smoothly.