Which mags for 9mm AR's?

technetium-99m

Mighty Righty
Someone point me in the right direction for 9mm AR mags. I'm fine with modifying a pile of UZI mags if that's the best route.
 

Matt1911

Cyrwus Jr.
I had good luck with C-products 32 round mags.
I have a few UZI mags in the shop that I never got the notches cut, so I couldn't say how well they worked. I've always heard good things though.
 
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