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TbT TX200 mk3 & Prosport short stroke kit

Discussion in 'Trade / Commercial sales' started by Tinbum, May 26, 2014.

  1. Tinbum

    Tinbum Delusions of adequacy

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    I now have piston extensions available for the Air Arms TX mk3 and Prosport guns. The standard aluminium extension reduces the stroke by 13mm, but I can make different lengths to order.

    Reducing the stroke reduces the swept volume from larger US market levels closer to the ideal for our 12ft/lb Limit. The result is a faster shot cycle with less movement within the gun and reduced felt recoil. Although very simple to fit, this is not a simple drop-in fix! The power will have to balanced to achieve the best results. Please get in touch if you need advice before proceeding!

    These are bespoke items and will be made to order. However, I will endeavour to make and despatch all items within 24 hours where possible.

    Forum members price is only £14.99 plus £1.99 p&p.

    Discounts available for existing customers and combined purchases!
     
  2. Tinbum

    Tinbum Delusions of adequacy

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    Oh, and I've been banned from going out to my workshop for the rest of the day and we're going away for the day and night tomorrow, so these'll be made and posted weds/thurs!:eek:
     
  3. dave goodall

    dave goodall Donator

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    Can these be made of hws then ideally my77
     
  4. Tinbum

    Tinbum Delusions of adequacy

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    Dave, if you send me your piston I'll make one to fit for the same price!

    Pm me


    Edit: Hang on a minute! Yours is the 25mm piston isn't it? Not wanting to talk myself out of a sale or anything, but there's no point stroking that. Its that volume we're all striving for. Its perfect as it is!;)
     
    Last edited: May 26, 2014
  5. Jackroadkill

    Jackroadkill Donator

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    Please keep posts on sales threads to questions about the item for sale or statements along the lines of "I'll take the item / one on the items".

    Thanks,

    JR
     
  6. Tinbum

    Tinbum Delusions of adequacy

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    Bump!

    The 13mm is becoming popular with tuners who want to take their tinkering to the next level, but the 10mm is giving great results with the existing spring and very little work from the user.
     
  7. ste

    ste Posting Addict

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    Hi to all
    Tinbum fitted the 10mm extention and one pre load washer to start chrono test today but wow what can I say I was very impressed with the delrin kit but this has transformed my tx200 to another level I will keep you informed just to say thanks and keep up the good work
    Very well made quality product
    Would recommend anyone with a tx or prosport to consider this option
    Thanks ste
     
  8. ste

    ste Posting Addict

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    Well guys I got a really good report from the chrono very consist and at 11.4 with aa fields
    Nice one Nic well chuffed
     
  9. Tinbum

    Tinbum Delusions of adequacy

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    I now have some 10 & 13mm extensions made and ready to send.

    Im at the springer bash this weekend so last day for posting is Thursday. :)
     
  10. Hoodster

    Hoodster Engaging Member

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    I'm thinking of putting a vortek kit in my tx hc do you think a 10mm extension will still work okay with it ?
     
  11. Tinbum

    Tinbum Delusions of adequacy

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    Yep, it simply attaches to the front of the piston. With standard AA spring and one of my kits the results are all 11+fpe with 10mm, and so far its 10-11fpe with 13mm and some preload.
     
  12. OzzyJ

    OzzyJ Donator

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    Please pm me your details (sorry dont still have them from the drop in kit). I would like a 10mm kit for my tx200mk3.
    cheers
    Oz
     
  13. Jimbob 2705

    Jimbob 2705 Well-Known Member

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    Did you do one for a HW97 Piston?

    Just I'm interested in one for my 25mm Piston - I know you said its ideal but I just want to try something ;)

    Many Thanks,

    James
     
  14. Tinbum

    Tinbum Delusions of adequacy

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    I'm working on an easy to fit, DIY extension for the HW range, but it is still early days. I will let you know if and when its ready.:)

    But on the plus side, I have six 10mm and four 13mm units ready to send or try at the springer bash if you're gonna be there!
     
    Last edited: Jun 4, 2014
  15. Jimbob 2705

    Jimbob 2705 Well-Known Member

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    Ok, Let me know when you've got one done :)

    I haven't decided on a length yet, but I'll let you know...infact I may have a couple of lengths ;)

    Many Thanks,

    James
     
  16. Jimbob 2705

    Jimbob 2705 Well-Known Member

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    I'm probably looking a 6 or 7mm one, and possibly also a 11mm....for a 25mm 97 :)

    Thanks

    James
     
  17. Trouserferret

    Trouserferret Donator

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    Just wanted to say that I fitted my new kit and 13mm piston extension in my .22 TX200HC last night and I'm well chuffed with it. Made a right hash of fitting the first kit, turns out I'd left the damn steel top hat in the piston. What a diddy, no wonder I couldn't get it to fit! :facepalm:

    Ran a few shots through the crono last night, and power ranges from 11.69 11.75 over ten shots with one washer in (was 10.1fpe and a bit jumpy before). Lock time is near instantaneous and the whole recoil transmits as a solid "thunk". I'd heartily recommend fitting this kit, transformed an already decent rifle into something brilliant!

    Cheers, Tinbum!

    (Apologies if this shouldn't be in the sales section, but just thought I'd add it as I'd posted about having trouble with the kit previously. My fault as usual! :D)
     
  18. Tinbum

    Tinbum Delusions of adequacy

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    We're getting some very good results with these! 10&13mm extensions ready to post!
     
  19. Tinbum

    Tinbum Delusions of adequacy

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    Bump!
     
  20. Jimbob 2705

    Jimbob 2705 Well-Known Member

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    Any new on this?:)

    Thanks,

    James
     

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