don't laugh ... the B2 is quite a good rifle really. This one needs a replacement barrel/breech release thumb catch ... the catch on the lh side that you push forward to push in the barrel/breech retaining plunger to allow the rifle to be cocked.
Does anyone have a scrap B2 that has this thumb catch ... we have the screw and washer. Fair price paid for this little bit of bent metal. Or, failing that, does anyone know where I might get one? I rang SMK who advised me to work through an RFD.

Also: the rear sight adjuster and screw. I think there is a threaded stud/screw that screws into the action on the breech block and that this screw will have the adjuster on it. We have the sight plus the front retaining screw.

And out of interest: if you remove this sight e.g. to put a scope on, check the tapped hole for the front screw of the rear sight. This rifle has the hole tapped right into the barrel, giving a superb air leak.

All help appreciated

cheers, phil