Cugir PSL muzzle break question
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Thread: Cugir PSL muzzle break question

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    Cugir PSL muzzle break question

    Got a Cugir build PSL inbound , from the pictures it shows the horizontal pint connecting the break to the FSP.

    From what I gather this means it's pinned on and possibly welded. The bayo lug is still attached as well.

    Some say that this type of break is pushed in with no threads while I've seen others say they had threads after removing the pin . Is it just a flip of the coin?

    I was thinking of getting a and style FH. But if i won't have threads I'll leave it as is.

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    I have a Romanian PSL built from a kit & the muzzle break was pressed on & pined.
    I punched out the pin & unscrewed it, but just turned, so I put in a cross pin through the brake & pulled it off

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    was it threaded? and if not is there enough meat on there to do a LH 14x1 thread?

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    If it is not threaded, perhaps there is enough barrel, to go 1/2 x 28 and use a flash hider. CNC Warrior has them for 7.62. I did two WASRs this way.

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    Quote Originally Posted by Akicita View Post
    If it is not threaded, perhaps there is enough barrel, to go 1/2 x 28 and use a flash hider. CNC Warrior has them for 7.62. I did two WASRs this way.
    I want to put the Tobruk FH on it, from Nodakspud.

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    Breaks will be pinned OR welded, not both.

    If yours is pinned, there are no threads under the break.

    The threaded barrels use a different break that has a spot weld to make the break permenantly attached.

    After some years of investigation, I determined that there are 3 sizes of barrel finish and break on the pinned break guns. One is definitely too large to thread without being turned down on a lathe. The mid size can be threaded with a guide if the die opens extra wide. The smallest size can be threaded with a guide and a normal LH 14x1 die.

    There is no way to know which size your barrel will be. Mine was the large size and the break would not come off without being heated red hot and pulled with a puller. Needless to say, the break was damaged. I tried 2 different 14x1 dies, but neither would open wide enough to begin threading the end of the barrel. Other people reported successfully using the same dies. I ended up cutting a threaded AK barrel extension and precision boring it for an interference fit, heating it and pressing it on and pinning as the original break was, then screwed on a Nodakspud Tabuk FH.
    Last edited by Mark75H; 10-28-2016 at 08:22 PM.
    MP31b likes this.
    "shall not be infringed."

    Has only one meaning ... can not be restricted in any way. There is no exception clause, just a period.

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    thanks Mark,

    ill probably just leave it be then.

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    I thought about pulling my brake off but thought why bother?
    Probably best to leave it as it came.

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    I needed to pull one to thread so I could blank adapt it but the barrel was too small to thread properly. Had to braze metal on it to make it thick enough to thread.
    "No matter what you try and make in Russia, it always turns out like a Kalashnikov,”
    Vladimir Putin 2013

 

 

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