AK-74 Barrel Transplant - Page 3

AK-74 Barrel Transplant

This is a discussion on AK-74 Barrel Transplant within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; Hey Cat, you ever heard of the freezing method? Some guys have put the barrel in the freezer overnite and just before installing, heat the ...

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Thread: AK-74 Barrel Transplant

  1. #31
    Senior Member Array Gun Bunny's Avatar
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    Hey Cat, you ever heard of the freezing method? Some guys have put the barrel in the freezer overnite and just before installing, heat the trunnion, and wallah! No need for a press!!!
    Kahr CW9
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  2. #32
    Member Array The Cat's Avatar
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    Quote Originally Posted by Gun Bunny View Post
    Hey Cat, you ever heard of the freezing method? Some guys have put the barrel in the freezer overnite and just before installing, heat the trunnion, and wallah! No need for a press!!!
    That's an interesting approach - let Physics work for you for a change!

    It's worth a try, particularly on the rear sight and gas blocks...... Hmmmmmm
    Friends Don't Let Friends Buy Century!

  3. #33
    Senior Member Array Rigrat's Avatar
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    Hey Cat, How is the transfer going? It's good that you are getting experience on yours so I can send you mine to replace, LOL.

  4. #34
    Member Array The Cat's Avatar
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    It's going well so far. My biggest worry was getting the rear sight block off without dinging it up, so I got midieval and hacksawed the old barrel in a couple places. A big hammer and four sockets (which were NOT ruined!) later, all the components were off the old barrel. It's a good thing Mrs Cat wasn't home at the time, because each freed component was followed by a burst of very loud, very joyous vulgarities.

    I was also afraid that the Century monkeys might have done something lame like slightly enlarging the openings in the components to get them to fit the US barrel better....which would make them too loose to use on the Bulgy barrel... but fortunately they hadn't!

    All that remains is the buying of a bottle of case lube, maybe a half hour with a press, and reinstalling the pins and she'll be ready to go.


    Yours..... If I had easy access to a press, I'd probably take you up on it.

    I do highly recommend that you buy one of those Bulgarian barrels while they're still available.
    From what I've seen of NDS receivers, you swap your barrel out and you'll have one of the best AK-74s that there is.... even with it having originally been built by Century.

    Think about it - after the barrel change, all Century will have done to your rifle is rivet the trunnions into the receiver, park the gun, and install furniture. You could replace your furniture (if you wanted to), and you could Duracoat it one of these days, and that would make their Parkerizing irrelevant. That just leaves ten little Century-installed rivets.
    FCG is by Tapco, so you know THAT is good. The Bulgarians did the rest.
    Friends Don't Let Friends Buy Century!

  5. #35
    Senior Member Array Rigrat's Avatar
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    I'd probably do that if I had the money but things are super tight right now. Sounds as if yours is going to be a very nice rifle afterwards.

  6. #36
    Member Array The Cat's Avatar
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    No pics yet, but everything's done except for pressing the barrel into the receiver.

    Getting the gas block and the sights on STRAIGHT was a bit of a *****.
    Friends Don't Let Friends Buy Century!

  7. #37
    Member Array Seraph's Avatar
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    Good to see this shaping up right!
    Under the sword lifted high, there is Hell, making you tremble. But go ahead, and you have the land of Bliss.

    ~ Miyamoto Musashi

  8. #38
    Member Array The Cat's Avatar
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    Here's a piece of the barrel from the muzzle.
    Note the crappy rifling - that gun almost *was* a semiautomatic musket!

    Friends Don't Let Friends Buy Century!

  9. #39
    Member Array The Cat's Avatar
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    So close, yet so far away!





    Check out her 'tan line'! I may cold blue it, or I may leave it like it is as a reminder. I may even duracoat it sometime. Who knows?


    Friends Don't Let Friends Buy Century!

  10. #40
    Senior Member Array Katana's Avatar
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    Awesome looking job so far! Keep up the good work!

    And remember, this is sacred work. Why, the AK is even God's weapon of choice:

    http://failblog.org/2010/06/23/epic-...-fail-spree-3/
    "Stand your ground, don't fire unless fired upon, but if they mean to have a war, let it begin here!" - John Parker April 19th, 1775 Lexington, MA

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  11. #41
    Senior Member Array Gun Bunny's Avatar
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    Quote Originally Posted by The Cat View Post
    Here's a piece of the barrel from the muzzle.
    Note the crappy rifling - that gun almost *was* a semiautomatic musket!

    Are some of those pics of the "crown"? (the bottom 2 on the left)

    Glad it is shaping up for you Cat!
    Kahr CW9
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    Ruger LC9 (when the girlfriend lets me carry her gun)


    "First Duty is To Remember"

  12. #42
    Member Array The Cat's Avatar
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    Yeah - that's the crown... but the external damage you see was done by me. I was none too gentle on it when I removed the front sight.

    That's some SOFT metal...
    Friends Don't Let Friends Buy Century!

  13. #43
    Member Array The Cat's Avatar
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    COMPLETE!!!!!!!!!!!!!


    DC member Shadenfreud got me access to a 30 ton press today!

    Youtube user 'buildyourownak' recommended using case lube when pressing the barrel in, and I think that was very very good advice.

    Headspace is GOOD! Yet another kudo to Bulgarian quality - the barrel pin notch aligned perfectly with the pin hole in the trunnion. I checked the headspace - it was a little tight with the GO gauge... and a few swipes with a file on the pads on the back of bolt lugs took care of that.





    Here she is, cleaned, reassembled, oiled, greased, and ready to shoot. It's a bummer that the weather's lousy today, or she'd be on a range somewhere.


    Friends Don't Let Friends Buy Century!

  14. #44
    Senior Member Array Katana's Avatar
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    "Stand your ground, don't fire unless fired upon, but if they mean to have a war, let it begin here!" - John Parker April 19th, 1775 Lexington, MA

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  15. #45
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    Way to go, Cat!
    Under the sword lifted high, there is Hell, making you tremble. But go ahead, and you have the land of Bliss.

    ~ Miyamoto Musashi

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