Para TTR type conversion?
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Thread: Para TTR type conversion?

  1. #1
    Gunco Member joezx10r's Avatar
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    Default Para TTR type conversion?

    I was looking at the Para TTR specs last night and thought it might be possable to convert a standard AR type rifle to the Para's recoil system and side folding stock. From what I understand a gas operated with a op rod attached to the carrier which slides overtop of the short gas tube. Surrounding the op rod is the recoil spring that stands in for the conventional buffer/spring system. Also the carrier has been shortend 2.9" so that a folding stock can be used. Watch this vid at about the 1 min mark you can see just how it all works. http://www.para-usa.com/new/video_ttr.php

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    Gunco Member joezx10r's Avatar
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    Just a rendering of what I got so far

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    gunco irregular moleman's Avatar
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    The Para arms setup reminds me of an improved Olympic arms piston system. A piston driven upper is on the "to do list" for me at some point. I was thinking of an off center gas piston to keep the heigth low enough to use standard handguards or free float tubes if you wanted.

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    Gunco Addicted for life j427x's Avatar
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    is there enough mass there to do without the buffer?

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    Gunco Member cymax666's Avatar
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    yes there should provided that one is able to calculate the require spring rate for the action spring place on top of op road..... this system is similar to a sig550 556 540 system

    the action spring rides around the piston. one could either design this to be a short stroke system or a long similar to sig 5xx model

    the para system is a delayed impingement system

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