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Old 12-10-2007, 04:23 PM   #1
light load
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Default AMMS (cutoff) underfolder locking lug easy fix

Guys, I got a really sweet brand new AMMS UF kit from copes for a good price. There was a catch however as I am sure some of you are aware of. The locking lug was demilled by accident on these kits so Roger reduced the price to reflect this. So not wanting to try and locate a spare locking lug. I repaired mine.
I drilled thru the lug shaft end that was cut off with a 5/32" bit. Then got a small washer ,took a spare standard AK build rivit, put the rivit thru the washer, then thru the lug then into the drilled shaft. Then flipped it upside down, on the rivit head and took a drift pin straight down thru the hole in the shaft and peened the end of the rivit till it swelled up but not too much as you want the shaft to turn. At this point if you have access to a welder you can weld over the peened end if you feel it needs to be stronger.Also it is tight quarters so you will need some skill. Mine is holding up fine with just the peened rivit so far.
I enclosed a shot of what it looks like. I think it looks as good as factory. Well maybe not, but good enough for me
Before

After
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Last edited by light load; 12-10-2007 at 10:31 PM.
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Old 12-10-2007, 04:40 PM   #2
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that does look damn good LL.I would have never known what I was lookin for if I didn't have yours and mine to look at.amazing how short a time it took for someone to figure a way to fix the glitch in it..two thumbs up buddy..edit..the more I look at it,the less I see the "fix".it looks normal and supposed to be there..
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Old 12-10-2007, 06:46 PM   #3
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Good going Lightload - pretty ingenious!
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Old 12-10-2007, 06:55 PM   #4
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I was waiting for someone to find a way around this prob, either a new found source of the parts or a fix. Good job!
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Old 12-10-2007, 10:26 PM   #5
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Excellent repair. Looks factory.
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Old 12-10-2007, 10:34 PM   #6
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Thanks guys, That is one thing that is a constant here. A great group of guys
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Old 12-10-2007, 10:36 PM   #7
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Good job. I had to read your fix before I could figure out what it was that needed to be fixed, otherwise I would have missed it. I didn't see the "before" picture, before!
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Old 12-10-2007, 10:40 PM   #8
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I added a before shot in the post. That is how it came in the kit. Apparently they de milled a bunch like that. Too bad because the rifle I got was unfired!
I know there is probably one Hungarian in the unemployment line
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Old 12-10-2007, 10:47 PM   #9
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Quote:
Originally Posted by light load
I added a before shot in the post. That is how it came in the kit. Apparently they de milled a bunch like that. Too bad because the rifle I got was unfired!
I know there is probably one Hungarian in the unemployment line
Not to worry........he works at Century now
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Old 12-10-2007, 10:49 PM   #10
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Their loss and your gain. That fix is definitely elegant. Like the others said I wouldn't have known what you did by just looking at the picture without reading your post.
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Old 12-10-2007, 10:53 PM   #11
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Nice job, I had suggested that in the last thread of this problem. I didn't know how it would work out though. Great fix.


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Old 12-11-2007, 03:01 AM   #12
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Nice job light load! What kind of washer did you use?
Here a link to the first thread. http://www.akfiles.com/forums/showthread.php?t=30345

Last edited by notime; 12-11-2007 at 07:04 AM.
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Old 12-11-2007, 03:16 AM   #13
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I'm almost 99.9% sure that all of the AMMS guns got imported & demilled by TGW

Last edited by notime; 12-11-2007 at 07:25 AM.
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Old 12-11-2007, 08:14 AM   #14
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Quote:
Originally Posted by notime
Nice job light load! What kind of washer did you use?
Here a link to the first thread. http://www.akfiles.com/forums/showthread.php?t=30345
Notime, I just found a small washer that the rivit would go thru in my washer can. If I couldnt find one I was going to go to the hardware store and buy one.
The best bet from what I can see is to silver solder or weld the rivit end in the shaft once its set to give it extra strength. Although mine is working fine , SO FAR. The one thing you have to absolutely watch out for whether pressing the rivit or welding is , Dont weld it fast, it has to spin, or watch when pressing down the rivit , it also tightens up so stop before it gets too solid. If you look on your UF stock assys, those external locking lugs all spin on the shaft. It is necessary for the lining up of the pins.


Just checked out the other posting you guys were talking about. I missed that one some how. When was that posted?
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Old 12-11-2007, 02:59 PM   #15
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I started that post back on 11/ 12/07. Thank you! For the info.
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Old 12-11-2007, 09:28 PM   #16
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What kind of receiver are you putting on it? I got some AMMS flats & two NDS-1P. I'm not sure yet what I want to do.
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Old 12-12-2007, 07:48 AM   #17
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Quote:
Originally Posted by notime
What kind of receiver are you putting on it? I got some AMMS flats & two NDS-1P. I'm not sure yet what I want to do.
I use AK Builder flats exclusively.
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Old 12-12-2007, 12:51 PM   #18
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The ones I have are AK Builder flats. Are you still working on yours if not email or post a pic if you will? Thank you for all of the help & info!
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Old 12-12-2007, 01:10 PM   #19
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I am waiting for my step rail upgrade parts before I do anymore flats

Oh boy oh boy, new stuff for Christmas for me me me


Guess you can tell where I have evolved to on the maturity scale.

Wonder why I have a hard time staying married
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Old 12-12-2007, 01:32 PM   #20
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Beats the bars! Both kind! step rail upgrade parts?
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Old 12-12-2007, 01:47 PM   #21
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The new pieces for the jig that make the upper rails stepped instead of just flat. Also suppose to make the bottom of the receiver really flat
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Old 03-28-2008, 10:09 AM   #22
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Would this fix be ok for a nodak reciever?
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