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  #81  
Old 05-12-2010, 10:15 AM
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Thank you for doing that J.
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  #82  
Old 05-14-2010, 7:29 PM
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Very informative. Thank you.
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  #83  
Old 05-19-2010, 10:10 PM
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Very good write up and pictures! how about a pic of the finished product?
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  #84  
Old 05-19-2010, 10:21 PM
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Quote:
Originally Posted by AIMSMALL View Post
Very good write up and pictures! how about a pic of the finished product?
Thank you. How about a pic of the almost finished products? I'm so lazy.


Oh, and here's were you can get it on PDF.
http://www.calguns.net/calgunforum/s...42#post4306842
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  #85  
Old 05-19-2010, 11:10 PM
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That's the most amazingly clean pair of builds I've ever seen.

Here's one of mine:

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  #86  
Old 05-20-2010, 11:08 AM
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^^
Thank you Mike. Nice looking build you have there too. You guys forced me to finish up the builds. lol

Enjoy.

Polish and Romanian Underfolders.

Here's an UF group shot.
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  #87  
Old 05-20-2010, 12:04 PM
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Nice work Mach. I like the way it shows off the differences in folder material and angle. The Romy gives you a chance at good sight picture without having to work so hard at bending. The others are a little better on recoil by being a straight line.
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  #88  
Old 05-20-2010, 12:46 PM
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Thanks bigbob.
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  #89  
Old 05-21-2010, 10:30 AM
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So, I have this trigger in my box of spare parts. It's not US marked, but it's very well made, appears to be adjustable.

Anyone know what it is?



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  #90  
Old 05-21-2010, 12:21 PM
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Most likely a Red Star arms part. It's US made.
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  #91  
Old 05-27-2010, 10:11 AM
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Bump for the build party.

Print this out.

See you all there.
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  #92  
Old 07-06-2010, 2:58 PM
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You do extremely nice work 69Mach1.
Both in your tutorials, and your builds.
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  #93  
Old 07-07-2010, 8:44 AM
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Quote:
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You do extremely nice work 69Mach1.
Both in your tutorials, and your builds.
Thank you sir.
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  #94  
Old 07-07-2010, 11:24 AM
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Quote:
Originally Posted by 69Mach1 View Post
Thank you. How about a pic of the almost finished products? I'm so lazy.


Oh, and here's were you can get it on PDF.
http://www.calguns.net/calgunforum/s...42#post4306842
So how did you refinish the stocks? Is the reciever just painted?
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  #95  
Old 07-08-2010, 9:18 PM
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AIMSMALL, they're both just parkarized. I haven't had the time to paint any of them yet. I've got 12 cans of alumahyde II just sitting here....lol
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  #96  
Old 07-08-2010, 9:21 PM
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Originally Posted by 69Mach1 View Post
AIMSMALL, they're both just parkarized. I haven't had the time to paint any of them yet. I've got 12 cans of alumahyde II just sitting here....lol
oh really? then that means we gonna paint my krink when i end up down there again LOL

it needs it BAD...
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The virgin requires more work (don't they all )

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Z gets around. lol
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  #97  
Old 07-08-2010, 9:22 PM
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Originally Posted by Z ME FLY View Post
oh really? then that means we gonna paint my krink when i end up down there again LOL

it needs it BAD...
Absolutely. Was it park'd at the last party?
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  #98  
Old 07-08-2010, 9:25 PM
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Absolutely. Was it park'd at the last party?
Yeah but I reparked it at the norcal bp and it ended up gray. Then the fake can finish came off so I just went ghetto and spray painted it for now.
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Z gets around. lol
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  #99  
Old 07-20-2010, 6:51 PM
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Originally Posted by 69Mach1 View Post
In addition to these tips, a small and large hand file, some sand paper, and a punch set are needed.
What kind of sand paper?
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  #100  
Old 07-20-2010, 7:44 PM
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What kind of sand paper?
250 grit is best, nothing harsh.
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  #101  
Old 09-03-2010, 12:12 PM
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I did a video on using the AK-builder bending Jig... was my First You Tube Video...

http://www.youtube.com/watch?v=wqdnQ1Yei_4

[YT]wqdnQ1Yei_4[/YT]
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  #102  
Old 09-08-2010, 8:42 AM
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Default Folder Angle

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Originally Posted by bigbob76 View Post
Nice work Mach. I like the way it shows off the differences in folder material and angle. The Romy gives you a chance at good sight picture without having to work so hard at bending. The others are a little better on recoil by being a straight line.
This is a little off the subject.

But is there anyway to get an AK-47 buttstock that has as more of a downward angle to it than the standard buttstock (like the one folder shown)?

I'm trying to find either a fixed buttstock, or even better an adjustable buttstock, that angles more toward the ground.

Any ideas?
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  #103  
Old 09-08-2010, 3:36 PM
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It's not hard to carve your own AK stock from either wood or laminate. I've made several. Measure from an existing one, mark with a grease pencil, cut with a saw, pound to fit, paint to match.
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  #104  
Old 09-09-2010, 11:48 PM
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This is a little off the subject.

But is there anyway to get an AK-47 buttstock that has as more of a downward angle to it than the standard buttstock (like the one folder shown)?

I'm trying to find either a fixed buttstock, or even better an adjustable buttstock, that angles more toward the ground.

Any ideas?
Go with Chinese. You may have to shim it a little, or you may get lucky.
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  #105  
Old 09-13-2010, 5:09 PM
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So Mach..............
You gonna add to this tutorial for milled re-weld builds also?
(crosses fingers , and says a little AK builder prayer).
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  #106  
Old 09-13-2010, 10:18 PM
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Default Chinese

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Go with Chinese. You may have to shim it a little, or you may get lucky.
I think you're right. Thanks for the pictures. The Chinese stock always did appear to be the most downward slanting. I appreciate the confirmation.

Any idea where I can get a Chinese buttstock for an AK-47?

I've got a rubber butt pad that I already use that gives some additional downward slant. If I put it on the Chinese buttstock, it would be even better.

Last edited by Tisdel; 09-13-2010 at 10:57 PM.. Reason: addendum
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  #107  
Old 09-30-2010, 10:55 AM
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Great write up...
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  #108  
Old 09-30-2010, 11:59 PM
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This is an awesome tutorial for somebody going to a build party for the first time.

Great job!
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  #109  
Old 10-29-2010, 7:15 PM
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Thank you, this post helped me generate a checklist and the rail trimming idea was excellent.
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  #110  
Old 10-29-2010, 10:51 PM
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Default Rivets

Since this is an AK building thread, it seems like an appropriate place to ask a question about the riveting of AK's.

Is there a wide variation in the quality of the rivets used to build AK's? Are the rivets heat treated or tempered in any way?

I'm asking this because I've just returned 2 AK's where the rear trunnion rivets bent backwards bad enought to cause the rear trunnion to separate slightly from the receiver.

This occurred on the IO Inc CASAR. Twice--on 2 separate rifles.
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  #111  
Old 10-30-2010, 5:24 AM
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Quote:
Originally Posted by Tisdel View Post
Since this is an AK building thread, it seems like an appropriate place to ask a question about the riveting of AK's.

Is there a wide variation in the quality of the rivets used to build AK's? Are the rivets heat treated or tempered in any way?

I'm asking this because I've just returned 2 AK's where the rear trunnion rivets bent backwards bad enought to cause the rear trunnion to separate slightly from the receiver.

This occurred on the IO Inc CASAR. Twice--on 2 separate rifles.
When the manufacturer uses cheap unskilled labor it's not much of a leap to think maybe they used rivets not designed for the shear loads imposed on them. They can get away with soft rivets in areas where the only load is tension but soft rivets yield under shear loading. Most of us that build AKs buy our rivets from AK-Builder.
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  #112  
Old 10-31-2010, 10:14 AM
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Does anyone sell a small portable furnace that we can get to improve are builds at build party's ?
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  #113  
Old 11-08-2010, 5:55 PM
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Incredible tutorial!
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  #114  
Old 11-09-2010, 11:57 PM
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Default Rivets

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Originally Posted by bigbob76 View Post
When the manufacturer uses cheap unskilled labor it's not much of a leap to think maybe they used rivets not designed for the shear loads imposed on them. They can get away with soft rivets in areas where the only load is tension but soft rivets yield under shear loading. Most of us that build AKs buy our rivets from AK-Builder.
Thanks for the tip, bigbob.
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  #115  
Old 02-05-2011, 12:41 PM
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I'd like to thank you Mach on your tutorial,also to the others who post, great info. I haven't been to a BP due to my schedule, so I purchased all the necessary tooling I need from Curtis @AK-Builders. Just started my first build today and by following the tutorial step by step my build (first) is coming together. I can see why it is "ADDICTING",but I gotta watch myself ,wait till my better half finds out what I spent on tooling(lol). Again thanks .
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  #116  
Old 02-05-2011, 1:24 PM
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I'd like to thank you Mach on your tutorial,also to the others who post, great info. I haven't been to a BP due to my schedule, so I purchased all the necessary tooling I need from Curtis @AK-Builders. Just started my first build today and by following the tutorial step by step my build (first) is coming together. I can see why it is "ADDICTING",but I gotta watch myself ,wait till my better half finds out what I spent on tooling(lol). Again thanks .
Be a kind and considerate mate and don't tell her how much you spent. It will just cause her extra stress.
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  #117  
Old 02-08-2011, 4:19 PM
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Awesome write up!

Quote:
Originally Posted by MrNiceGuy View Post
Great writeup 69!
BTW....up here in NorCal we serve Tofu-burgers....:P
These would be great at a shotgun party! "PULL!!!"
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  #118  
Old 02-21-2011, 11:11 AM
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Quote:
Originally Posted by 69Mach1 View Post
Pressing on the barrel items:

Start with alignment. I use the rear sight base pin sticking out perpendicular from the base to match up to a bit I placed into the groove in the barrel for the RSB pin. Once it's very close, I'll start to install the rear sight block onto the barrel.

Using my press and an AR 15 multi-tool (you read right) I will secure the rear sight block and press the barrel onto the RSB. I'm protecting the chamber end of course. Hopefully everything lines up and the pin will just go in.

Using the AR 15 multi-tool again, I'll press the barrel onto the gas block.

Finally, while securing the barrel, I'll use a socket with an inside diameter that's larger than the barrel muzzle, I'll press the front sight base onto the barrel.

If you get lucky, at least one of the two pins in both the gas block and the front sight base fits. That way both are secured onto the barrel so that they don't move while you ream the other hole to fit the second pin.
I do not see where you did a Go, No-Go check. I'm assuming the only way to establish the correct headspace is to keep pressing in tiny increments (how precise are the garden variety 20 ton presses in moving the barrel in hundredths of an inch when you get close?). I suppose the only way to fix too little head space is uglier - bash it out with a hammer and block and start over?

If there is any aspect of the build that worries me, it's the amount of time and effort in moving the barrel in tiny increments - testing and moving a little more. Sounds nerve racking. At a build party, I'm betting the press is in high demand - how long does it take on average to get the barrel pressed, tested and adjusted per build? How many have to start from scratch because they overshot the head space?

-R
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  #119  
Old 02-22-2011, 6:40 PM
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If you use an existing matching trunnion and barrel it shouldn't be a problem, but always check. Yes, you press in a bit at a time. You can use a threaded rod and blocks to do so.

I've overpressed one and driven it back out with a large hammer and a soft brass 1" punch.
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  #120  
Old 02-27-2011, 4:01 PM
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In building a AK-74 are the procedures the same ?
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