AGM MP 40 repairs

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Wesbro
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AGM MP 40 repairs

Postby Wesbro » Mon Dec 16, 2019 10:51 pm

Hi I'm new to the forum have an interest in WW2 Weapons. I have an AGM MP40 that has broken just in front of the trigger guard :( now I'm guessing this part is going to be hard to source second hand or even harder to repair ? The metal can't be welded or can it ? Or is it a case of clean up and JB weld or some similar epoxy type of repair ? Hopefully someone here has experience of repairing this stuff ......, Thanks in advance Wes.
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Re: AGM MP 40 repairs

Postby Lord Elpus » Tue Dec 17, 2019 11:08 am

Hi Wesbro, put up some pictures of the problem, without a doubt there’s someone on here that can either give advice, or fix it for you.
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Wesbro
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Re: AGM MP 40 repairs

Postby Wesbro » Tue Dec 17, 2019 8:25 pm

I can't pull the pics off my tablet to show them ?
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Re: AGM MP 40 repairs

Postby Lord Elpus » Tue Dec 17, 2019 9:04 pm

I use an iPad, I do on occasion have a problem uploading pic’s, but most of the time they load straight up. Somewhere on the forum there is a “ how to “ on the subject, basically go to attachments and follow the instructions.
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Wesbro
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Re: AGM MP 40 repairs

Postby Wesbro » Wed Dec 18, 2019 8:06 am

E5645E15-8DC6-4F02-8136-8A925D4D99DB.jpeg
3FB8105E-E67B-4AEF-AE8F-6633E801D6CC.jpeg
Lord Elpus
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Re: AGM MP 40 repairs

Postby Lord Elpus » Wed Dec 18, 2019 1:53 pm

That part is basically the gearbox mount, if you remove the side plastics there should be another two screws in there holding the front broken piece. Epoxy glue won’t help you with this, I would suggest a steel plate replacement with a jiggle in it, to fit over, and up to the trigger guard. Then drill, thread to 3mm and use short countersunk screws just in front of the said trigger guard. This, done properly, could be shaped and the screws filled in and over, and re-sprayed probably only to the depth of a few millimetres, and you wouldn’t even notice it.
Here’s a pic of an original piece.
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90F7C40B-CFDB-4D6B-B677-4EA3A9298FAE.jpeg
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Wesbro
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Re: AGM MP 40 repairs

Postby Wesbro » Wed Dec 18, 2019 10:45 pm

Yes thats it. Do you mean like thin sheet shaped around it drilled tapped screwed and filled ?
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Re: AGM MP 40 repairs

Postby Lord Elpus » Wed Dec 18, 2019 11:43 pm

You say “thin sheet” that implies to me, tin sheet. You’ll need at least 2mm thick steel plate to get any strength of support to the piece, you may even have to shape it round the trigger guard itself, if there’s not enough “ meat” on the original part.
For that part to have broken in the first place, I reckon that must have been dropped onto hard surface. Probably due to not putting the gun together properly after a battery change.
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Re: AGM MP 40 repairs

Postby dadio » Thu Dec 19, 2019 11:23 pm

If I were doing it I'd discard the front bit that broke off and has the screws up into the gearbox and make a copy in steel but longer to extend back above the trigger guard bit , I'd cut away metal from what's left of the trigger guard part to allow the extra length of the steel plate and put counter sunk screws in from the top of the new steel plate down into the trigger guard , you'd have a virtually invisible repair that's fairly simple to do with basic hand tools ,a drill ,saw , a file and a tapp to cut the threads .
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Lord Elpus
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Re: AGM MP 40 repairs

Postby Lord Elpus » Fri Dec 20, 2019 12:12 pm

Here’s a sketch of my first thoughts, to replace the broken piece, but depending on what’s left to screw to, I did mention it may have to go round onto the trigger guard.
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Wesbro
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Re: AGM MP 40 repairs

Postby Wesbro » Fri Dec 20, 2019 5:26 pm

That's great, thanks, I'll source some scrap ally from work and try that idea. Sounds the best way to fix it to be honest. If I could get hold of the whole. Body as a replacement I would but it seems spare parts are a tad hard to get hold of.

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