Fits ammo and has center carrier - Duramag .450 Bushmaster Stainless Steel 7 Round Rifle Magazine

The mag is a nice SS mag that feels good. Ammo loaded into it well as you would expect.
The issue I had with both mags I bought is they would not correctly feed. Couldn't get more than two rounds to chamber in a row. Searched around a bit and it is a common problem with 450 BM mags. I did as their suggestions which was bend the ears at the top till the ammo sits with an upward angle then polish the same ears. Worked like a charm, feeds like a dream now. Reduced stars for it needing additional work to function correctly. I would suggest going to the tromix website and buy the mag and follower designed to combat these exact issues.