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  1. airsand

    What is a "Probe Buffer" O-Ring for the WEIHRAUCH HW100

    Its listed below and in other lists I've found as Part number "2618A" In your posting it is listed with that corresponded part number as a "quickfill dustplug".... thats an interesting clue. Is the quickfill adapter the same as the regular fill probe???
  2. airsand

    What is a "Probe Buffer" O-Ring for the WEIHRAUCH HW100

    I have the HW100 and am looking at the full listing provided on here for its o rings and need some guidance. Can someone explain to me what a "Probe Buffer" O-ring is? Is this an O-ring for the filling probe adapter or something else, can't find any info on this anywhere else. It appears the...
  3. airsand

    Part no. for the External Barrel O Ring Seal for FX Impact?

    So I am looking at this listing.... "6 x External Barrel O Ring Seals for FX Impact Air Rifle" I am thinking when they say "External Barrel O Ring Seals for FX Impact Air Rifle" I think they are referring to part no. 19703 which are the two o-rings shown here in A3... does that sound correct??
  4. airsand

    Impact Air Rifle Telescopic Shroud / Silencer O Ring

    So recently I won a few airguns in a storage auction here in NC and so forgive me because I am new to the sport but trying to learn more about how these actually function from an engineering stand point and eventually go on to use them this summer. For the FX Impact... based on this diagram...
  5. airsand

    Impact MkII, Impact-X & Impact O-Ring List: 3-14-19 Update

    Where on this listing is the 2 orings you need for the telescoping shroud... confused
  6. airsand

    Part no. for the External Barrel O Ring Seal for FX Impact?

    I have an FX Impact air rifle and looking to replace barrel seals. Someone is selling the External Barrel O Ring Seals for FX Impact Air Rifle and they state "This is the most worn part on the rifle and sit on the external of the barrel. If changing barrels you will commonly find that these o...
  7. airsand

    Ques. about O-Ring hardness & material for WEIHRAUCH HW100

    Yes it seems Buna 70 is the default unless otherwise stated. Understood now. thank you!
  8. airsand

    Ques. about O-Ring hardness & material for WEIHRAUCH HW100

    From my understand Teflon is a PFAS forever chemical and 3M is in the process of having it being discontinued very soon. Does anyone know if Buna material is recommend for air gun O-rings? I hear Viton is also well regarded too. There is an O-ring manufacturer nearby, they can get me any type...
  9. airsand

    Ques. about O-Ring hardness & material for WEIHRAUCH HW100

    Hi I can purchase these locally, there's an O-ring company nearby... I just want to know the O-ring material and hardness (Durometer) that is recommended for the HW100... Hopefully someone knows that specification...
  10. airsand

    Ques. about O-Ring hardness & material for WEIHRAUCH HW100

    I have the HW100 and am looking to order some spare O-rings for it. Based on a previous post I found on here I have the dimensions for all of the HW100 O-rings. So now I am just looking to find out what material is recommended to order these O-rings in: Buna, EPDM, Viton? Also are all the...