Hi all,
I picked up a prewar BSA underlever action at Melbourne Airgun Fair recently. It has the tap and end cap and I have a spare stock and some parts.

I need a suitable piston: it’s a 43” rifle, fairly early, probably “ The BSA Air Rifle “. I also need the basic trigger with hook type catch. I plan to build a very low power bitsa rifle for quiet parlour use at home.

Any generic BSA prewar piston with rod and suitable trigger would do the job.

Cheers
torrens