30 round magazines

I have 20 round mags for my Mini 14 and M1A, but the standard magazine for the AR platform seems to be 30 rounds. Now is definitely not the time to be buying AR magazines, but that is what was thrust upon me. In the unlikely even that I get to choose, I have decided that the Magpul Pmag is right...

Guys, Did PMI make stainless or nickel 20-rd mags? I was given seven PMI mags (blued 30x2, blued 20x2, "shiny" 20x3). I am accustomed to unpolished stainless mags having a bit of a dull light gray color, where these are very bright. FYI, I would trade the stainless/nickel mags for Ruger...

I was going to order some from midway but the reviews are not the best, compared to 20rds.

From left to right, Ruger, ProMag Steel, John Manson, Thermold, TAPCO, ProMag polymer. 1. Would not lock on a closed bolt - ProMag Steel, John Manson, Thermold 2. Would load first bullet without assistance - ProMag Steel, Ruger, TAPCO, John Manson 3. Loaded all rounds without FTF - All but...

I was wondering if anybody has seen any quality control issues with the 30-rd. mags from Ruger? I purchased 2 from CDNN and when I got them the floorplates hangs down at the front of the magazine body rather than flush like my factory 20-rd. magazines. Don't know if I am just nitpicking here...