Thanks for that - the L shaped slot for the bolt just screamed CP1 at me and, as it's largely always been with airguns, it seems easier to dress up an existing design rather than create something new from scratch. Hence my suspicion.

I've already got a CP1 so I doubt I'll be getting one of these but I am a bit bemused by the reaction to this pistol - was the original Nemesis really that revered? I've had a brief session with one a while back and the only thing I can recall was that it didn't feel comfortable in the hand at all.