The Marlin mag for the Camp 45 is a 1911 style and stainless steel. I have something like 75 1911 mags, they range from 70's contract GI to Wilson top end competition, the Marlin rates at the top with the Wilson, I wouldn't be surprised if it wasn't made by Wilson. On the Camp9's I've owned, I had S&W 69 & 59 mags, Marlin factory mags and knock off. Stick with Marlin and S&W if you can! Ivan