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Just stock Beretta. Theyre not marked usually. Accepts most mags; however, I bought & use only Beretta's stock mags

These come from Beretta with AR15 Steel Magazine (Beretta does not specify brand). http://www.berettausa.com/en-us/beretta-universal-ar-15-30-round-magazine/c80018p/ - One of the Beretta's peculiarities is in magazine pickiness. It won't accept just any old 5.56 mag. The ARX is particularly choosy about Pmags; Gen 3s won't seat at all, but it likes Gen 2 mags just fine. Although I don't personally own any extended capacity Surefire magazines, it has been documented that the ARX100 doesn't feed with either 60 round or 100 round. Nor does it fit the X Products drum mags. It feeds milsurp mags as well as its own steel magazine: like a charm. I used battered GI mag refugees from wars overseas, brand new aluminum 30 rounders, and well worn mil-spec hand-me-downs from friends' ARs, and each fed smoothly and dropped freely.

Richard, it come with a magazine with no manufacture mark, it will take any AR magazine. it's an awesome rifle!!