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PostPosted: Thu Sep 20, 2007 8:11 am 
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Hi all little problem can anyone suggest a solution. 9mm b/f thompson has uzi mags within original .45 mags. However upon cocking/firing the bolt strips the top and second round forward therefore trying to put two in the breech - which jams the bolt as they don't get that far. Is this because the uzi mags are double column? (sten mags are too long) can it be resolved by pinching the .45 mag lips tighter together to present only one round at a time to the bolt - any help appreciated!!!

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PostPosted: Thu Sep 20, 2007 8:33 am 
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Your problem may be that the Uzi mag is pushed up to much in the Thompson mag so the bottom of the bolt catches two, problem caused buy dropping the mag on the floor. Pull the Uzi mag down out of the Thompson mag until it feeds one. When you have done this mark the Thompson mag against the Uzi mag for future reference.


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PostPosted: Thu Sep 20, 2007 15:11 pm 
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Alternatively, you can convert it to a single feed Thompson (as mine is). Basically it works on a Vig (Vignola) magazine, and I think you need shave a small piece of metal off the bolt. See me at an event mate, and I will gladly show you how mine is done.

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Ben

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PostPosted: Thu Sep 20, 2007 16:35 pm 
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Does the vig mag fit inside a thompson mag.


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PostPosted: Thu Sep 20, 2007 16:43 pm 
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Hi Guys thanx for info so far gonna have to deweld the uzi mags inside the thompson mags - see if I can readjust them as per 30th cammos advice. As per yrs Ben I know sten mags don't fit and I thought Vig mags were quite large as they use em on the converted mp40's.
Any ideas on donor mags for a 20rd thompson stick?
:?

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PostPosted: Thu Sep 20, 2007 17:32 pm 
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Well to be honest, I have made a couple of Vig mags myself, and they fit a treat (they do need cutting down in length, as too do their springs, but it's not a big job). I also used Vigs for 20 round mags. Can send photographs on request, and yes they do fit!

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PostPosted: Thu Sep 20, 2007 17:41 pm 
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[quote="ben_major"]Well to be honest, I have made a couple of Vig mags myself, and they fit a treat (they do need cutting down in length, as too do their springs, but it's not a big job). I also used Vigs for 20 round mags. Can send photographs on request, and yes they do fit!

Cheers,
Ben[/qu
Very interesting, I would like to see what you've done as i have a 28 Thompson that uses the Uzi system with Thompson mags. Don't use expensive 20rnd mags use 30 round mags and cut them down with a power hacksaw as the saw cuts them square, leave enough room for adjustment so two rounds don't hang up.


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PostPosted: Thu Sep 20, 2007 17:44 pm 
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30thcammo wrote:
ben_major wrote:
Well to be honest, I have made a couple of Vig mags myself, and they fit a treat (they do need cutting down in length, as too do their springs, but it's not a big job). I also used Vigs for 20 round mags. Can send photographs on request, and yes they do fit!

Cheers,
Ben

Very interesting, I would like to see what you've done as i have a 28 Thompson that uses the Uzi system with Thompson mags. Don't use expensive 20rnd mags use 30 round mags and cut them down with a power hacksaw as the saw cuts them square, leave enough room for adjustment so two rounds don't hang up.


OK, I'll go and dig the mags out of the ammo box and post up some pictures for you.

Cheers,
Ben

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PostPosted: Thu Sep 20, 2007 18:36 pm 
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Thanks Ben.


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PostPosted: Thu Sep 20, 2007 18:47 pm 
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Hi Ben yes pics would be nice mate I,ve pm'd u. I can see I may have my hands full with redoing the original uzi mags which are a tad welded too high in the tommy mags. I'll try dremmeling the spot welds first - if all else fails I'll knock em out with a big hammer and start again!!!! :roll:

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PostPosted: Thu Sep 20, 2007 18:48 pm 
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Ben I take it you mean Vigneron mags?!?!

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PostPosted: Wed Sep 26, 2007 19:01 pm 
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Vigneron mags are indeed the ones to be used.

Sorry for the delay chaps, but here are a couple of photos. If you need any more, let me know.

Thanks,
Ben


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PostPosted: Wed Sep 26, 2007 19:30 pm 
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From those pics they look exactly like the 2 mags I got with my Thompson. By single feed, I assume you meen the cartridges stack ontop each other rather than staggered so only offering 1 round at a time to the bolt and avoiding 2 rounds being stripped at once? as this is how mine works. Will put some pics of mine up so you can compare.


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PostPosted: Wed Sep 26, 2007 19:41 pm 
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Ok heres mine. (I used my MGC Carbine mag to show the staggered stacking)


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And a few more


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PostPosted: Wed Sep 26, 2007 19:51 pm 
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Paul, yep, they're exactly the same as mine. To insert the Vigneron mags into the Thompson ones, you must first cut off the front of the Vig mag, and then insert it into the shell of a Thompson mag. I will try to remove the bottom of one, and show what I mean a little better.

Thanks,
Ben

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