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Thread: bolts carriers and trunnions

  1. #1
    Gunco Regular smartbomb's Avatar
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    Default bolts carriers and trunnions

    probably been asked and answered but...

    will a 74 bolt work with a 47 carrier and trunnion? or... do they all need to be from the same family tree?

    i seem to recall reading somewhere that they were interchangeable, but be damned if i can remember where.
    al gore is full of carbon enriched shit

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    Gunco Veteran [486]'s Avatar
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    The bolts on the -74s have smaller stems IIRC.

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    Happy Camper hcpookie's Avatar
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    Yes they are smaller. As I recall, there are no -74 bolts that use the AKM style thick stem. The Romanian SARs use the AKM stem, but I don't recall they have a 5.45 model, only 7.62 and 5.56.
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    The "original" Boltcutter Rivet Squeezers:
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    Project Pink - the Pink and Blue AK-74:
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    No Hope For Me 1biggun's Avatar
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    74 BOLT HAS A SMALL STEM, THE LUGS ARE A LITTLE LONGER AS WELL.

    IM PRETTY SURE THAT IT WILL WORK WITH A 47 TRUNION IF THE BARREL IS SPACED AHEAD. I PLAN ON USING 74 BOLTS ON YUGO M70 TRUNIONS FOR MY 243 AND 308 BUILDS. I THINK THAT WILL YEILD THE STONGEST POSSABLE TWO LUG SET UP.
    I HAVE SLEAVED A CARRIER TO TAKE A 74 BOLT TO GET A SUPER TIGHT CLEARANCE BUT CARRIERS ARE STILL REASONABLY PRICED.

  5. #5
    Gunco Member rapidrus's Avatar
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    I could not get 74 bolt to lock in 47 romy front trunion, but EVERONE says its suppose to
    Just got a 74 trunion

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    Happy Camper hcpookie's Avatar
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    I don't think I have tried a 74 bolt in a '47 trunion... I've done it the other way around, an AKM bolt in a '74 trunion, but I modified the bolt ramp to make it fit. Now you have me curious...
    Gunco Member #10

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    The "original" Boltcutter Rivet Squeezers:
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    Project Pink - the Pink and Blue AK-74:
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  7. #7
    Gunco Veteran muttman's Avatar
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    Quote Originally Posted by rapidrus View Post
    I could not get 74 bolt to lock in 47 romy front trunion, but EVERONE says its suppose to
    Just got a 74 trunion
    I think the ramp on the left side that starts the boldt head to turn on the feed guide is diffrent 7.62 to 5.45 or 5.56. I had made a print (paper and pen) and now cant find it . muttman

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    Gunco Veteran jreifsch80's Avatar
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    it wouldnt be too hard to adjust, just remove the akm bullet guide and either rework it by moving the rotation ramp forward as needed with a file or just replacing it with a 74 bullet guide. (edit: which route is taken would be determined by caliber as a 7.62x25 build with a 74 bolt might work better with a akm guide modded for a 74 bolt)

    im sure an akm carrier could, in theory, be modified to work with a 74 bolt but that would be very hard to justify when bulgy 74 carriers can be bought for 25 bucks or so
    Last edited by jreifsch80; 01-29-2011 at 11:41 PM. Reason: after thought

  9. #9
    Gunco Member classicmachine's Avatar
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    Quote Originally Posted by rapidrus View Post
    I could not get 74 bolt to lock in 47 romy front trunion, but EVERONE says its suppose to
    Just got a 74 trunion
    The lugs on the 74 bolt are a bit longer than those on the 47.

    I have made the 74 bolt and carrier work with a 47 trunnion by modifying the bullet guide and moving the barrel.

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