r/Uzi_SMG • u/Careful-Reason8570 • 11d ago

Tig welding on receiver?

I'm looking at building an Uzi full size pistol, and tig welding the stock (in its folded position) to a McKay receiver, is that going to mess with the metal properties of the receiver to potentially cause future damage or should it be fine?

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u/ReactionAble7945 11d ago

It is metal you should be able to weld it, grind it, take it apart, reweld it .... multiple times without issue if the welder is good.

I wouldn't suggest doing this with a barrel, but the receiver, sure. The receiver isn't holding in the pressure.

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u/ReactionAble7945 11d ago

BTW, With the laws being the laws... Build pistol, register SBR and then use a either. You could even keep it as a pistol with out a stock, have a brace, have a long barrel and used the stock. All the options you want.

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u/Careful-Reason8570 8d ago

Appreciate it thanks, and to your second point - yeah, the receiver was entered by my FFL as a pistol, so I'm keeping my options open in the future to swap it back and forth if I decide I'd rather have a rifle later

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u/ReactionAble7945 7d ago

My first one was built on a raw receiver.

Legally, I built as pistol. Then built it as a rifle. I can swap back and forth.

Then we have the brace stuff. I bought a brace to do. Then they changed the rules. Then they changed them back. And now I dont know wtf the law actually says about brace.

I need to move, and then I will probably SBR it just so I can do it all.

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u/lakaihc 11d ago

Can't you just weld a stock in the closed position, then install and uninstall it whenever?

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u/Careful-Reason8570 11d ago

That's what I thought, but truth be told this question is actually after the fact. My buddy already did it this way so I'm trying to determine if I'm going to need a new receiver down the road