Nerf Strongarm Barrell Extension

This is a rifled barrel extension for the Nerf Strongarm. I had two hopes when I started this design.

1. Modifiable for future add-ons/customization.
2. Range extension of the darts being fired.

Of those the modifiability of the design I believe works but could also still be improved to incorporate the standard Nerf adapter rather that the simple four guides I designed in to this. My ultimate goal in this is to add-on/alter the appearance of the gun to be something different, too whic