I was intrigued by the FX verminator ""bolt barrel" for firing arrows.
Having retrofit a 2240 with a 24" barrel, it seemed to me that it might be an easy task to find a 10.8x mm ID arrow, bolt, or at least tubing.
That hasn't happened yet, and I'm still not sure what the OD of the verminator extreme bolt barrel is.

Given the effort required to maintain non PAL rating on a modified 2240, it seems reasonable to explore another avenue of utilizing the power of a modified airgun without breaking the law.

Anyone tried this?

Here's a review of the gun that inspired the question:
http://www.youtube.com/watch?v=6bxE7rxY6fU