Took several deer this past season with a 308 version. No issues with the magazine or overall function. In fact, enjoying the lightweight + reasonable accuracy. Great knock around the woods gun, especially for the low price.
I have two, one for my son and one for me. Both are holding up well with about 300 rounds or so through each. I think the tight fit and the latch work together to hold it in place. This might eliminate some of the wobble found in the longer mags and the standard Mini system. I should add that we have only run 10 rounders through our though.
Mine has no issues yet either. I have three of the 5 round magazines, and two of the 20 rounders. I hardly use the 20’s, being so heavy and all, but they work just the same.
Every AI/AICS magazine in the world locks on the rear only. Not sure what about the RAR’s magazine locking at the back only has some of you guys spooked.