Bozzer,
I have the following bits for a HW80K:
1) Main Spring (12 ft.lbs.)
2) Venom piston washer.
3) Venom breech seal.
4) Probably a spring guide for the above spring.
The Venom bits are used but functional. It's just that I had replaced these with new parts when I had serviced the rifle last.
Would any of these be of any use?
Rustam.