That's a really interesting development... However, they never seem to take off... I don't know why.. As I really like mine...

I think the JB1, Mowhawk and the Dragon are the ones most easy to get hold of... I have the JB1 from the first Airgun world review. It was handbuilt by John Bowkett... Nice and quiet operator...

However, I have more useful ones which are a multi pump and multi-shot airguns based on the JB1. For me the ultimate self contained airgun.

Its nice to see that this area of airguns is still persued..
Cheers
Alex