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Thread: using a mauser barrell for a poormans m76

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    GuncoHolic zteknik's Avatar
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    Default using a mauser barrell for a poormans m76

    Now i have a virgin bulged yugo trunnion-no markings on it but its exact like a m70
    Ive seen nice takeoff 8mm mauser barrels for sale and was wondering how difficult it would be to make it work

    I still have to do some research on what bolt and carrier to use and stuff
    But i think it'll work-I probably have to fold a longer reciever to make it work
    I thought about a psl reciever but i think the dementions are way different
    Oh and of course i'd have to make custom lower rails

    Watcha guys think?
    Keep the change-I just want my Country back!!!

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    GuncoHolic Rahatlakhoom's Avatar
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    Sounds like a fun venture in interchangability.
    If you can fold your own receiver with extra length, then more power to you.

    My initial impression on using 8mm in a stamped config, was that it had to be
    the 1.6mm thickness.
    I picked up a ColdSteel heavy yugo blank with extra length and converted a
    Romy RPK kit into an 8mm rig. The recoil did hammer the rear trunnion loose
    from the rivets. Some rework of rivets and welding the trunnion fast solved the
    problem.

    I found the 80% blank worked well because you can field all your layouts for the specific caliber.
    Dimensionally, it is similar to the PSL receiver, because the cartridge lengths
    are fairly close. I would not be afraid to convert a PSL receiver to 8mm. I think
    the rail lengths are about correct, the magwell would need reworked.

    If I remember right, the Mauser chamber threads would need to be turned down
    and sleeved to get to the correct width for M70 trunnion. Otherwise, with some
    mods, it's doable.

    Go with the PSL bolt and carrier. The bolt face would need a sleeve to reduce diameter.

    BTW, Green Mountain makes new M76 barrels.
    I've tried one, and it's at least as good as the originals, if not better on accuracy.
    Charter member-Busted Box Club est. 2006

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    GuncoHolic zteknik's Avatar
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    Thanks for the info!
    after thinking about it the mauser take off would cost me more in the long run-getting it turned and what not as opposed to the GM barrell which is the propper dimensions anyways
    I diddnt think about the cold steel blanks-forgot they even had them-this is probably the way to go,as I'd have to make a jig to accomadate the leangth

    As far as sleaving a psl bolt face what would be a good way to do it?
    Or would just getting an m76 bolt and carrier be cheaper?
    As far as the rear trunnion is concerened i could put streangthening plates on it and use longer rivets

    Would i have to modify/tweak the bullet guide in the front trunnion for the 8mm?I probably have to anyway for propper mag fit clearence
    Keep the change-I just want my Country back!!!

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    GuncoHolic Rahatlakhoom's Avatar
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    For the bolt face, I would turn down a ring on my mini-lathe
    and mig weld it in place. I've done this to AK bolt faces to convert to the
    9mm cartridge. So, I think it would be fairly simple to do.

    If you can find an M76 bolt and carrier then this would be the way to go,
    however, seldom are spare parts found for these rifles.

    The plates with longer rivets would probably do on the rear end.
    Also, a stronger recoil spring takes some of the energy, I ended up swapping out
    the AK spring for an M-14 spring, and this quieted it down also.

    A build like this is tends to keep you awake at night. lol.
    Charter member-Busted Box Club est. 2006

    "I will adhere to the Patriot Act, the one signed in 1776"
    - Marc Anderson

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    GuncoHolic zteknik's Avatar
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    The ring would be an easy thing-would i have to notch it for the extractor
    True on finding any spare m76 components by themselves and im sure if I did there not going to be as cheap as psl stuff

    I have xtra Garrand springs that should do the trick-from what i recall there almost the same as the M14s

    Yea insomnia comes to mind! but it makes for real cool plans!
    Keep the change-I just want my Country back!!!

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    GuncoHolic Rahatlakhoom's Avatar
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    I just weld in the entire ring, then take a small carbide burr and grind out the
    extractor area. Try the Garand spring, it may work fine.
    Charter member-Busted Box Club est. 2006

    "I will adhere to the Patriot Act, the one signed in 1776"
    - Marc Anderson

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    GuncoHolic zteknik's Avatar
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    Cool!Thanks!
    Now would a psl mag be ok for 8mm?there a heck of a lot cheper and more available then the 76 mags
    Keep the change-I just want my Country back!!!

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    Gunco Regular akfiend's Avatar
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    m76 bolt and carrier available for $150 at assault weapons of ohio

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    GuncoHolic zteknik's Avatar
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    Quote Originally Posted by akfiend View Post
    m76 bolt and carrier available for $150 at assault weapons of ohio
    Thats not as bad as i thought!You think that would work in a cold steel psl blank?
    I'm sure I'd have to do some file fitting of stuff any way,but sure would make life easier!
    Keep the change-I just want my Country back!!!

  10. #10
    GuncoHolic Rahatlakhoom's Avatar
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    Quote Originally Posted by zteknik View Post
    Cool!Thanks!
    Now would a psl mag be ok for 8mm?there a heck of a lot cheper and more available then the 76 mags
    PSL mags are too short for 8mm.
    The m76 bolt and carrier should work fine with the psl blank.
    Charter member-Busted Box Club est. 2006

    "I will adhere to the Patriot Act, the one signed in 1776"
    - Marc Anderson

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