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Old 08-21-2011, 10:00 PM   #1
sdrake100
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Default All-thread barrel install method

Hi guys, I've been looking for an All-thread jig or instructions on how to build one. Don't have too much time to make something so a jig I can purchase is the way to go for me (opportunity cost too high). Wondering if any of you guys have one for installing ak74 barrels.

Thanks.
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Old 08-21-2011, 11:05 PM   #2
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I was looking into this about an hour ago actually. I found this(Complete with pictures.)

http://www.gunco.net/forums/f3/amazi...l-press-37833/

Looks simple enough, now I just need to get the funds to start gathering tools and parts for my ak building career
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Old 08-21-2011, 11:34 PM   #3
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I've use the All Thread method on a few AK47 barrels and it works great. I didn't use a hardened rod, and used the bolt carrier for the one end. As far as building one, all I needed was:

the rod
some electrical tape
some nuts and washers
some brass or bronze washers.

Here's how I did mine:




Here's my Build thread
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Old 08-21-2011, 11:40 PM   #4
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I just realized that an ak74 barrel might have too small a diameter to install reliably.
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Old 08-22-2011, 12:02 AM   #5
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Quote:
Originally Posted by sdrake100
I just realized that an ak74 barrel might have too small a diameter to install reliably.
And I just realized you were talking about a 74 not a 47...
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Old 08-22-2011, 01:02 AM   #6
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http://www.akfiles.com/forums/showthread.php?t=45198

here what I did - hope it helps = makeing another set of this. easy to make





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Old 08-22-2011, 05:02 PM   #7
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Well I was having a good day til I came back here.. Guess i will have to use a press for my 74 build. Im assuming the best way will be to make a jig to press on the rear sight block.
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Old 08-22-2011, 07:18 PM   #8
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I've pressed in normal barrels with success. I use a muzzle nut though.
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Old 08-23-2011, 02:41 AM   #9
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Quote:
Originally Posted by cbrkneedrggr
Well I was having a good day til I came back here.. Guess i will have to use a press for my 74 build. Im assuming the best way will be to make a jig to press on the rear sight block.
maybe you are have ing a good day - the set up I did does do do the M74 barrel. 5.45x39mm barrel thankz to the GUNPLUMBER

GUNPLUMBER's picture of modified bolt carrier



my plates that mimic above picture - use-unmodified bolt carrier





use a 3inch 1/4 20tpi bolt instead of long peice of allthread.



any way

place barrel in vice with V block at rear sight base

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Old 08-23-2011, 02:55 AM   #10
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then with barrel assembly in vise,

receiver assembly having bolt carrier with plates installed .


air hammer reciever onto barrel assemblt - apply brass air hammer bitt to rear of bolt carrier protected by plates. bolt carrier supporting front runion.
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Old 08-23-2011, 03:01 AM   #11
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revised plate - must try out - need to make 6 more,
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Old 08-23-2011, 03:02 AM   #12
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Quote:
Originally Posted by sdrake100
I've pressed in normal barrels with success. I use a muzzle nut though.
definnately protect the muzzel crown and threads
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Old 07-27-2013, 05:23 AM   #13
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Default All thread problem

I'm installing mine using the allthread method and I've got the barrel almost completely in place. The barrel still needs to move a hair in but the high strength all thread is right at snapping pressure. How can I get the movement I need to line up the pin holes without snapping the rod?
I tried heating up the trunnion a bit to expand it a bit.
Can I tap it with something or how can I get it to move?

Last edited by Roliver; 07-27-2013 at 05:23 AM. Reason: Missing letters
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Old 07-27-2013, 08:45 AM   #14
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I would say that once you get a bunch of tension on it lightly tap it with a hammer.
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Old 07-27-2013, 02:30 PM   #15
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If tapping it doesn't work out where can I get the grade 8 stuff?
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Old 07-27-2013, 02:53 PM   #16
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Jesus F, isnt it easier to just get a shop press? That looks like so much work.
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Old 07-29-2013, 09:20 PM   #17
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I put tension on it and left it for the night. Came back and tapped it and it went in.
Getting a shop press would be easier but I'm not looking for the easiest way. Besides that's more $$
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