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[W.I.P.] Hammerli AM 850 custom stock

Discussion in 'Gun Gallery' started by sgnek2k, Apr 16, 2014.

  1. sgnek2k

    sgnek2k Member

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    Hello, I write this post from Italy, and I want to share my Work In Progress, a customized stock for my AM 850.


    The wood is American Cherry and the design is inspired by a Accuracy International AWP.


    The realization includes a adjustable recoil plate , a cheekpiece adjustable in height, an aluminum tank cover, the latter has been modified using normal 88 grams disposable tank to which I applied a bleed valve with hydraulic quick connector.


    Here are the photos of the work, will not be long to finish, but I have time to work only for a few hours at the weekend.

    [​IMG]

    [​IMG]

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    drawing the shape

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    drilling the guard and thumbhole

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    Housing for mechanics

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    first shaping

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    the modified tank


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    the refill hose

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    housing cylinder tank

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    [​IMG]

    Cheekpiece

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    Test

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  2. sgnek2k

    sgnek2k Member

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    now the adjustable butt plate :

    [​IMG]

    [​IMG]

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    here is the raw mechanics assembled, missing ventilated rubber recoil pad, and shape the whole

    [​IMG]

    is all for now .. until next weekend.


    I hope I have written in an understandable English, otherwise I apologize :)
     
  3. The Robin

    The Robin Super Moderator Staff Member Mod/Admin

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    Looks a great project this, keep the pics coming :up:
     
  4. thevoid

    thevoid Posting Addict

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    Thanks for sharing, keep it going :)
     
  5. jolo-bolo

    jolo-bolo Donator

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    Wow great thread keep up with the pictures.
     
  6. ratharvester

    ratharvester Donator

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    Yeah great thread,very interesting I am looking forward to more pics too :)
     
  7. sgnek2k

    sgnek2k Member

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    Hi all, here are the latest updates.




    [​IMG]


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    This is all about the recoil pad.
    Now start with the cheek piece.


    [​IMG]


    [​IMG]


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    [​IMG]


    I'm going to see if I still have a family, see you tomorrow.
     
  8. sgnek2k

    sgnek2k Member

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    Here is the cheek piece ready to be shaped and placed on the rifle stock.

    [​IMG]

    [​IMG]
     
  9. Trouserferret

    Trouserferret Donator

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    Fantastic!

    I love seeing these kinds of builds. What I'd do for access to a workshop like that. :)

    Looks great, keep the pics coming!
     
  10. meerkat1

    meerkat1 Keyboard Hero

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    excellent job
     
  11. sgnek2k

    sgnek2k Member

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    daily updates:

    [​IMG]

    [​IMG]



    [​IMG]

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  12. sgnek2k

    sgnek2k Member

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    Thank you !
     
  13. sgnek2k

    sgnek2k Member

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    Try to assemble all the parts before sanding and staining.


    I'm thinking of covering the barrel with a carbon tube, to give a more "bad" look.


    [​IMG]


    [​IMG]


    [​IMG]
     
  14. sgnek2k

    sgnek2k Member

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    I weighed this morning,
    5.2 kilograms without the bipod, Harris (airsoft replica) weighs 440 grams
     
  15. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Nice woodworking skills - the stock looks great on the rifle :)

    I might as well be the first to say that I wouldn't trust that modified CO2 / air cylinder setup as far as I could throw it though.. are you planning on having it tested before you use it?
     
  16. sgnek2k

    sgnek2k Member

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    i tested it this morning, i shot 4 magazines ( 32 rounds ) and all work perfecly,
    However when i refilling the cylinder, I admit I have a ******* scary!
     
  17. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Glad to hear the rifle works OK, but I'd seriously consider getting that cylinder setup hydrostatically tested before using it further - their working pressure with CO2 is around 60bar; the air cylinder you're filling from is probably 200bar.

    HPA's a great way to go; but isn't worth losing fingers, a hand or worse for IMO.. what about using a regulated paintball bottle instead?
     
  18. sgnek2k

    sgnek2k Member

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    I think there was a misunderstanding!
    the rifle still works Co2, I fill it with a fire extinguisher co2, so the operating pressure is always 60/70 BAR.
    In Italy it is prohibited to change propellant, or better, you can do it, but then you have to re-test the rifle at BPN (National Test Bench).
    https://www.bancoprova.it/index.php/en/home.html
     
  19. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    I think you might be right - my mistake!

    I assumed it was air looking at the cylinder and connectors. Panic over :p
     
  20. Rattenskrieg

    Rattenskrieg Donator

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    Would you like to sell it mate if so I would love it. A picture of Beauty very well done.
     

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