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  1. Twohsieh

    Umarex 3rd Zelos has Issues. Anyone else having issues??

    I have had mine for a week, with a bottle conversion. no issues with mine
  2. Twohsieh

    Umarex Bottle upgrade alignment?

    Yes 5000 psi burst disc, no the scope does no contact the rail
  3. Twohsieh

    Umarex Bottle upgrade alignment?

    Upgraded the standard air tank with a bottle and adapter. Hand tightening the bottle onto the Zelos. Wish it will turn another quarter turn so that the pressure gauge dial can be in the correct orientation. Anybody have any suggestions on how to do this without having to sand down metal. ?
  4. Twohsieh

    Umarex Notos bottle source?

    I think 580cc is too big for a compact pcp like the notos
  5. Twohsieh

    Umarex Notos bottle source?

    just got it done yesterday. will report data when available
  6. Twohsieh

    Umarex Notos bottle source?

    My notos bottle conversion, .25L 4500 psi carbon bottle
  7. Twohsieh

    Crossman 1377 pcp coversion project

    no, the stock one will work
  8. Twohsieh

    Crossman 1377 pcp coversion project

    the ball at the end is the cocking mechanism that strikes the release valve for the air. so not really, with this design
  9. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    yes, rear bottle is rated to 250, front bottle is rated to 300
  10. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    Hi Allen, Haven't had time to see what the shot count is, I am shooting JSB .22 18.1, pellets. with the old 300cc bottle at 250 bar to 90 bar. i was getting 75-80 shots. at 870 fps. I will she what the shot count is.
  11. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    Its on off of ebay. i tried to look for the link, I no longer have it. but its about 7mm thinner than the fx bottle.
  12. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    with my setup it gives me about 4 inches of ARCA rail left for a bipod.
  13. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    No its being held on the singe large "screw" that is the size of the original port screw a I the size i guess is 10mm. look at he photo from ST site.
  14. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    I see your point. but the bottle on the front has a smaller diameter then the rear, its fairly "skinny", this way, the barrel guard will still mount to the bipd.
  15. Twohsieh

    FX Panthera with drop-down front bottle adapter ST0060

    Wanted to add more bottle volume to my Panthera but didn't like the look of the Panthera without the barrel guard. Saw Saber Tactical's Drop-down front bottle adapter and gave it a try. https://sabertacticalinc.com/products/fx-panthera-drop-down-adapter-st00xx. stainless steel...
  16. Twohsieh

    Crossman 1377 pcp coversion project

    update barrel bands, dovetail top can be used as a scope mount.
  17. Twohsieh

    Crossman 1377 pcp coversion project

    pcp tube is diameter is 25 mm,
  18. Twohsieh

    Crossman 1377 pcp coversion project

    I saw that one. but I hate the idea of the fill probe, I get confused on which gun which fill probe. the dual pressure gauge is helpful in the older version
  19. Twohsieh

    Crossman 1377 pcp coversion project

    The 18 in polished barrel added to the cost. The stock 10.25 in barrell could have been used. I get the point regarding the cost and agree, i could also just buy the diana, but i really enjoy tinkering with it. That’s a big part of the appeal of it.
  20. Twohsieh

    Crossman 1377 pcp coversion project

    I think they are from the same factory in china. Mine has no leaks, happy so far.