Wondering what are the best/most reliable magazines for the MINI 14 of 20 or 30 rounds?

I assume Ruger factory are good.

How about Thermold mags specifically in the MINI?

I've heard the thermolds and new Tapco mags hang up on the newer rifles. I stick with the factory mags. They're expensive but reliable.

Ruger.

I've never had a single problem with the Ruger magazines. There are probably cheaper out there, but none better.

I've never a single malfunction in thousands of rounds with my Ruger mags.

God Bless,

Steve

That would be Ruger, then Ruger.

Factory Ruger are your first choice, then PMI and Masen. I've used those fairly extensively in my AC556. Everything else should be avoided.

+1