This is some cobbled-together POS.

Think about the mechanics. A toplever of this type operates a Scott spindle that retracts rearward a Purdey bolt from cuts in the rear of the barrel lumps.

A Jones lever operates a "T" headed screw that interlocks within cuts between the barrel lumps; one to the front of the rear lump, and the other to the rear of the front lump.

No engineer can combine these two bolting systems.

Look at how poorly the forend fits. There is a wide gap between the action bars and the forend iron.

Not for me!!!

Curly