My plan was to repair these but I never got around to it. the 850 Airmagnum was taken apart (there is no CO2 Valve present) but everything else is present (it will need to be reassembled properly and a new CO2 Valve installed, the Seal behind the CO2 Valve was broken when removed) the TH78D is leaking but I haven't taken it apart so it cocks and cycles as it should, but as said is leaking CO2 when you insert Capsules. the Bolts to attach both the 850 and TH78D to their Stocks are also present.
Collection preferred, but I can Post for £15. Contact me on Whatsapp if interested.