Having set my Camp 45 up as a Bug Out gun with folding stock, I am looking at options for higher capacity magazines. I tried a ProMag 15 rounder and it stinks on ice. So I thought I would try one of the 28 round drum mags.
First, I have tried several ProMags' in various (around 5) pistols and rifles. None have worked for me. YMMV. Before you buy a high cap magazine for the camp 45 think about that little plastic piece will hold that very heavy magazine in the well. A full 28 round magazine could be too much for the magazine release little piece of plastic. The McCormick 10 round magazines work well for me.