The Elusive Type 1 Piston
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Thread: The Elusive Type 1 Piston

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    The Elusive Type 1 Piston

    Gents, I don't post here very often and when I come here I am usually seeking knowledge.

    I need to replicate a Type 1 piston and need a sample - even a damaged one to borrow for a couple days. I'll of course pay shipping to me and from me. If you have one to lend, please reply here or send an email message to [email protected]

    Thank You,
    Robert Forbus

    Ah - thank you BR!
    Last edited by Rforbus; 10-06-2018 at 07:54 PM.

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    If anyone is apprehensive about sending one to him, I can vouch for Robert. I know him personally. He's a good guy, and you will definitely get your part back with no issues.

    -Eric

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    Quote Originally Posted by corpsman5 View Post
    If anyone is apprehensive about sending one to him, I can vouch for Robert. I know him personally. He's a good guy, and you will definitely get your part back with no issues.

    -Eric
    Thank you Eric. I have three (03) or four (04) on the way to me. Very good since I can examine for slight differences and trends.
    corpsman5 likes this.

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    Robert,

    I know itís premature, but do you have a ball park price in mind?

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    Brownstone, no sir. I received the sample from BR762 and have the sketch complete. The Type 3 drawing shows these to be made from simple 50-point carbon steel, hardened to 34-40 Rockwell C and flash-hardchromed a minimum of 0,015mm after buffing. The sample BR762 sent even has buffed grooves. A customer of mine wants one and is "willing to settle" for alloy 300 stainless steel. That will work okay and be "pretty" when buffed but of course will not have the longevity of hardened steel that has a very thin layer of hardchrome. I'll examine the market and see what is the desire and what one is willing to pay. These would of course not be $20.00 units if made correctly. I can't even make a single soft stainless unit for that price.

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    Count me in for two properly made and chromed.

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    Does anyone know what turbos price point was for these when he made them? Were his made out of stainless? I'm pretty sure I have a turbothis fluted piston that came with one of my rifles he welded up. I have herd that the hard chrome process throws these out of spec when reproduced.
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    If the price is good I'd be in for two.
    Would prefer the harder steel made as close to or to original specs even at a higher price as I intend to shoot mine, I'd expect most people would be similar.
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    I would need atleast 4 maybe 5. As close to original spec as possible.

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    Way early, but any updates Robert?

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    Not likely to wear out a stainless piston in a semi-auto, primarily collector T1 firearm.

    Most US 922r pistons are stainless and not sure anyone has worn them out to any degree.
    Last edited by AKBLUE; 11-28-2018 at 07:03 PM.

  13. #12
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    Any updates on a reproduction piston?

    If an original piston is demilled then rewelded and machined would it count towards a compliance part for a manufacture?

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    Any updates or a ETA?

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    does turbo still make these? I had two of them at one time. seemed fine

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    ^ Turbo does still makes these. I had inquired awhile back, but he says he just to busy currently to do a run.

 

 
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