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 which I'm leaning scifi-ish. In that - this I believe is a good start.

As to the range extension - well that I really haven't seen. Maybe a little in the standard Nerf darts, but the accustrikes already go pretty far and as it is the Strongarm fires a decent distance without the barrel. At the very least I can say it doesn't diminish distance - except on occasion when the cylinder doesn't quite line up right. That being said I've only experienced this with the accustrike darts and might be du